Hirsa's research group (August 2007), L-R: Jonathan Leung (Postdoc),Ali N. Azadani (PhD candidate), Andrew Dexter (Undergraduate), Carlos Lopez (Visting Scholar), Hirsa, Ines Martinovic (Undergraduate), and Dan King (Undergraduate, not in the photo).

Amir H. Hirsa received his B.S. degree in aeronautics from San Jose State University in 1983, the M.S.E. and Ph.D. degrees in aerospace engineering from University of Michigan in 1986 and 1990 respectively. He joined the R.P.I. faculty in 1990.

Research Interests and Activities: Fluid mechanics and experimental hydrodynamics. Current research interests are in the area of interfacial phenomena, such as monolayer hydrodynamics (including intrinsic interfacial viscosities), and other surface tension effects, such as capillary instability. We also work in the area of bio-fluids including the studies of protein structure in the presence of flows, especially at the air/water interface. We have made advances to experimental techniques including particle image velocimetry, nonlinear optical technique of second-harmonic generation, as well as Brewster angle microscopy in flowing systems. We also work in the area of microfluidics, especially in relation to free surface effects. Our research is presently supported by grants from the National Science Foundation (NSF).

Professional Experience:
Rensselaer Polytechnic Institute; 2005 - present Professor of Mechanical and Aerospace Engineering; 1996 - 2005 Associate Professor; 1990 - 1996 Assistant Professor, also, Associate Head for Graduate Studies (2007 – present)

Rensselaer Polytechnic Institute; 2003 - present Joint Appointment (by courtesy) Howard P. Isermann Department of Chemical and Biological Engineering

University of California in Santa Barbara, Department of Chemical Engineering; 1/'07 - present Visiting Professor

Cornell University, School of Chemical Engineering; 1/'00 - 12/'00 Visiting Associate Professor

Editorship:
Editorial board member, Proceedings of The Royal Society (London) A: Mathematical, Physical & Engineering Sciences (Proc. R. Soc. A)

Honors and Awards:

Lewis T. Assini Undergraduate Teaching and Counseling Award, Dept. Mechanical Engineering, Aeronautical Engineering and Mechanics, RPI (2001)
Navy-ASEE Summer Research Fellowship (1992)

Refereed Journal Publications:

Lopez, C. A. and Hirsa, A. H., “Fast Focusing using a Pinned-Contact Oscillating Liquid Lens. Nature Photonics 2(10), (to appear October 2008; also on the cover of the October issue and an interview with the corresponding author (Hirsa) is featured in the back of that issue.)

Slater, D., Steen, P.H., Hirsa, A.H., and Lopez, C.A., “Chaotic Motions of a Forced Drop-Droplet Oscillator,” Physics of Fluids (2008, to appear).

Azadani, A.N., Lopez, J.M., and Hirsa, A.H., "Coupling Between Protein-Laden Films and a Shearing Bulk Flow," Journal of Colloid and Interface Science 322, 79-86 (2008).

Azadani, A.N., Lopez, J.M., and Hirsa, A.H., "Protein Crystallization at the Air/Water Interface Induced by Shearing Bulk Flow," Langmuir 23 (10), 5227-5230 (2007).

Wang, Z., Lopez, C., Hirsa, A., and Koratkar, N., "Impact Dynamics and Rebound of Water Droplets on Superhydrophobic Carbon Nanotube Arrays," Applied Physics Letters 91 (2), 023105-1-023105-3 (2007).

Gupta, A., Denver, H., Hirsa, A.H., Stenken, J., and Borca-Tasciuc, D.-A., "Localized, Low-Voltage Electroosmotic Pumping Across Nanoporous Membranes," Applied Physics Letters 91, 094101 (2007).

Theisen, E.A., Vogel, M.J., Lopez, C.A., Hirsa, A.H., and Steen, P.H., "Capillary Dynamics of Coupled Spherical-Cap Droplets," Journal of Fluid Mechanics 580, 495-505 (2007).

Hirsa, A.H., Lopez, J.M., Vogel, M.J., and Leung, J.J.F., "Effects of Shearing Flow with Inertia on Monolayer Mesoscale Structure," Langmuir 22 (23), 9483-9486 (2006).

Lopez, C.A., Lee, C.-C., and Hirsa, A.H., "Electrochemically Activated Adaptive Liquid Lens," Applied Physics Letters 87 (13), 134102-1-134102-3 (2005)

Hirsa, A.H., Lopez, C.A., Laytin, M.A., Vogel, J.M., and Steen, P.H., "Low-Dissipation Capillary Switches at Small Scales," Applied Physics Letters 86 (1), 014106-1 - 014106-3 (2005).

Leung, J.J.F., Hirsa, A.H., Blackburn, H.M., Marques, F., and Lopez, J.M., "Three-Dimensional Modes in a Periodically Driven Elongated Cavity," Physical Review E 71 (2), 026305-1 - 026305-7 (2005).

Lopez, J.M., Vogel, M.J., and Hirsa, A.H., "Influence of Co-Existing Phases on the Surface Dilatational Viscosity of Langmuir Monolayers," Physical Review E 70 (5), 056308-1 - 056308-5 (2004).

Vogel, M.J., Miraghaie, R., Lopez, J.M., and Hirsa, A.H., "Flow-Induced Patterning of Langmuir Monolayers, Langmuir 20, 5651-5654 (2004).

Lopez, J.M., Marques, F., Hirsa, A.H., and Miraghaie, R., "Symmetry Breaking in Free-Surface Cylinder Flows," Journal of Fluid Mechanics 502, 99-126 (2004).

Miraghaie, R., Lopez, J.M., and Hirsa, A.H., "Flow Induced Patterning at the Air-Water Interface," Physics of Fluids 15 (6), L45-L48 (2003).

Vogel, M.J., Hirsa, A.H., and Lopez, J.M., "Spatio-Temporal Dynamics of a Periodically Driven Cavity Flow," Journal of Fluid Mechanics 478, 197-226 (2003).

Hirsa, A.H., Lopez, J.M., and Miraghaie, R., "Determination of Surface Shear Viscosity via Deep-Channel Flow with Inertia," Journal of Fluid Mechanics 470, 135-149 (2002).

Vogel, M.J. and Hirsa, A.H., "Concentration Measurements Downstream of an Insoluble Monolayer Front," Journal of Fluid Mechanics 472, 283-305 (2002).

Heidari, A.H., Braun, R.J., Hirsa, A.H., Snow, S.A., and Naire, S., "Hydrodynamics of Bounded Vertical Film with Nonlinear Surface Properties," Journal of Colloid and Interface Science 253 (2), 295-307 (2002).

Hirsa, A.H., Lopez, J.M., and Miraghaie, R., " Symmetry Breaking to a Rotating Wave in a Lid-Driven Cylinder with a Free Surface: Experimental Observations," Physics of Fluids 14 (6), L29-L32 (2002).

Lopez, J.M., Miraghaie, R., and Hirsa, A.H., "Non-Newtonian Behavior of an Insoluble Monolayer: Effects of Inertia," Journal of Colloid and Interface Science 248 (1), 103-110 (2002).

Hirsa, A., Lopez, J.M., and Miraghaie, R., "Measurement and Computation of Interfacial Hydrodynamic Coupling at Air/Water Interface with an Insoluble Monolayer," Journal of Fluid Mechanics 443, 271-292 (2001).

Reed, B.L., Hirsa, A.H., and Steen, P.H., "Vorticity Transport in Solidification Boundary Layers," Journal of Fluid Mechanics 426, 397-406 (2001).

Lopez, J.M. and Hirsa, A.H., "Oscillatory Driven Cavity with an Air/Water Interface and an Insoluble Monolayer: Surface Viscosity Effects," Journal of Colloid and Interface Science 242 (1), 1-5 (2001).

Hirsa, A.H., Vogel, M.J., and Gayton, J.D., "Digital Particle Velocimetry Technique for Free-Surface Boundary Layer Measurements: Application to Vortex Pair Interactions," Experiments in Fluids 31 (2) 127-139 (2001).

Vogel, M.J., Hirsa, A.H., Kelley, J.S, and Korenowski, G.M., "Simultaneous Measurement of Free-Surface -Velocity and Surfactant Concentration via a Common Laser Probe," Review of Scientific Instruments 72 (2), 1502-1509 (2001).

Hirsa, A., Lopez, J.M., and Kim, S., "Evolution of an Initially Columnar Vortex Terminating Normal to a No-slip Wall," Experiments in Fluids 29 (4), 309-321 (2000).

Lopez, J.M. and Hirsa, A., "Surfactant influenced Gas/Liquid Interfaces: Nonlinear Equation of State and Finite Surface Viscosities," Journal of Colloid and Interface Science 229, 575-583 (2000).

Lopez, J.M. and Hirsa, A., "Direct Determination of the Dependence of the Surface Shear and Dilatational Viscosities on the Thermodynamic State of the Interface: Theoretical Foundations," Journal of Colloid and Interface Science 206 (1), 231-239 (1998).

Hirsa, A., Korenowski, G.M., Logory, L.M., and Judd, C.D., "Velocity Field and Surfactant Concentration Measurement Techniques for Free-Surface Flows," Experiments in Fluids 22 (3), 239-248 (1997).

Hirsa, A., Korenowski, G.M., Logory, L.M., and Judd, C.D., "Determination of Surface Viscosities by Surfactant Concentration and Velocity Field Measurements for an Insoluble Monolayer," Langmuir 13 (14), 3813-3822 (1997).

Logory, L.M., Hirsa, A., and Anthony, D.G., "Interaction of Wake Turbulence with a Free Surface," Physics of Fluids 8 (3), 805-815 (1996).

Edwards, D.P., Hirsa, A., and Jensen, M.K., "Turbulent Flow in Internally Finned Tubes," Journal of Fluids Engineering 118, 506-513 (1996).

Hirsa, A., Harper, J.E., and Kim S., "Columnar Vortex Generation and Interaction with a Clean or Contaminated Free Surface," Physics of Fluids 7 (11), 2532-2534 (1995).

Hirsa, A. and Willmarth, W.W., "Measurement of Vortex Pair Interaction with a Clean or Contaminated Free Surface," Journal of Fluid Mechanics 259, 25-45 (1994).

Tryggvason, G., Abdollahi-Alibeik, J., Willmarth, W.W., and Hirsa, A., "Collision of a Vortex Pair with a Contaminated Free Surface," Physics of Fluids A 4 (6), 1215-1229 (1992).

Anthony, D.G., Hirsa, A., and Willmarth, W.W., "On the Interaction of a Submerged Turbulent Jet with a Clean or Contaminated Free Surface," Physics of Fluids A 3(2), 245-247 (1991).

Willmarth, W.W., Tryggvason, G., Hirsa, A., and Yu, D., "Vortex Pair Generation and Interaction with a Free Surface," Physics of Fluids A 1 (2), 170-172 (1989).

Bernal, L.P., Hirsa, A., Kwon, J.T., and Willmarth, W.W., "On the Interaction of Vortex Rings and Pairs with a Free Surface for Varying Amounts of Surface Active Agents," Physics of Fluids A 1 (12), 2001-2004 (1989).

Refereed Journal Articles under Review:

Book Chapters:

Korenowski, G.M., Van Wagenen, E., Kelley, J.S., and Hirsa, A.H., "Imaging Surfactant Concentration Gradients," in Ocean Films, edited by G.M. Korenowski, Springer Verlang (in press).

Judd, K.P., Rusak, Z. and Hirsa A., "Theoretical and Experimental Studies of Swirling Flows in Diverging Streamtubes," in Advances in Fluid Mechanics III, edited by M. Rahman and C.A. Brebbia, WIT Press, 491-502 (2000).

Hirsa, A., Korenowski, G.M., Logory, L.M., Judd, C.D., and Kim, S., "Surfactant Effects on Vortex Flows at a Free Surface and Relation to Interfacial Gas Transfer," in Air-Water Gas Transfer, edited by B. Jahne and E.C. Monahan, AEON Verlag Publishing, Heidelberg, Germany, 649-663 (1995).

Refereed Conference Volumes:

Steen, P.H. and Hirsa, A.H., "Environmentally Benign Casting: Casting by Design," Proceedings, NSF Design, Service and Manufacturing Research Conference, San Juan, Porto Rico, January 7-10 (2001).

Lopez, J.M. and Hirsa, A., "Dynamics of Surfactant-Influenced Gas/Liquid Interfaces," Proceedings, Second International Conference on CFD in the Minerals and Process Industries, CSIRO, Melbourne, Australia; Dec. 6-8 (Published as a CD, 1999).

Jensen, M.K., Smith, R.N., Kaminski, D.A., and Hirsa, A., "Towards an Integrated Themo/Fluids Engineering Curriculum," Proceedings of the ASME Heat Transfer Division - 1998 Vol 3, ed. Nelson, R. A., et al.) , HTD-Vol. 361-3, ASME Publications, New York, NY, pp. 9-16 (1998).

Hirsa, A., Gayton, J.D., Korenowski, G.M., Lopez, J.M., and Chen, J., "Hydrodynamic Coupling of Surfactant-Influenced Gas/Liquid Interfaces," paper 97-2057, AIAA Fluid Dynamics Conference (1997).

Athans, R.E. and Hirsa, A., "A Photographic Study of a Small Flashing Jet," in Flow Visualization and Image Processing of Multiphase Systems, ed. Yang, W.-J., et al., HTD-Vol. 209, ASME Publications, New York, NY, pp. 201-206 (1995).

Hirsa, A., Logory, L.M., Korenowski, G.M., Judd, C.D., and Gaines Jr., G.L., "Velocity Field and Surfactant Concentration Measurement Techniques as Applied to the Interaction of a Vortex Pair with a Free Surface," in Laser Anemometry, ed. Huang, T.T., et al., HTD-Vol. 229, ASME Publications, New York, NY, pp. 123-129 (1995).

Locke, C.A., Hirsa, A., and Rubin, M.D., "Short-Wave Instability in a Laminar Vortex Pair," in Forum on Unsteady Flows, ed. Keith, W.L. & Wei, T., FED-Vol. 157, ASME Publications, New York, NY, pp. 73-81 (1993).

Edwards, D.P., Hirsa, A., and Jensen, M.K., "Turbulent Air Flow in Longitudinally Finned Tubes," in Heat Transfer in Turbulent Flows, ed. Amono, R.S., et al., HTD-Vol. 246, ASME Publications, New York, NY, pp. 9-16 (1993).

Edwards, D.P., Hirsa, A., and Jensen, M.K., "An Experimental Investigation of Flow in Longitudinally Finned Tubes," in Fundamentals of Forced Convection Heat Transfer, ed. Ebadian, M.A. & Oosthuizen, P.H., HTD-Vol. 210, ASME Publications, New York, NY, pp. 141-148 (1992).

Hirsa, A., Tryggvason G., Abdollahi-Alibeik, J., and Willmarth, W.W., "Measurement and Computations of Vortex Pair Interaction with a Clean or Contaminated Free Surface," in Proceedings, 18th Symposium of Naval Hydrodynamics, National Academic Press, Washington DC, pp. 521-531 (1990).

Abstracts Published:

Hirsa, A., Martinovic, I, Lopez, C., Basaran, O., and Ramalingam, S., “Coalescence and Breakup between a Capillary Switch and a Droplet,” Bull. Amer. Phys. Soc. 52 (17), 188 (2007).

Ramalingam, S., Basaran, O., Lopez, C., Martinovic, I., and Hirsa, A., “Computational Analysis of Coalescence and Breakup Between a Capillary Switch and a pendant drop,” Bull. Amer. Phys. Soc. 52 (17), 188 (2007).

Dexter, A., Azadani, A., Sorci, M., Belfort, G., and Hirsa, A., “Flow Induced Protein Nucleation: Insulin Oligomerization under Shear,” Bull. Amer. Phys. Soc. 52 (17), 275-276 (2007).

Azadani, A., Lopez, J., and Hirsa, A., “Coupling of a Protein-Laden Air/Water Interface to a Shearing Bulk Flow,” Bull. Amer. Phys. Soc. 52 (17), 274-275 (2007).

Leung, J., Hirsa, A., and Lopez, J., “Effects of Length Scale on Determining Surface Dilatational Viscosity,” Bull. Amer. Phys. Soc. 52 (17), 215 (2007).

Roy, A., Borrell, M., Felts, J. Leal, G., and Hirsa, A., “The Dueling Bubble Experiment,” Bull. Amer. Phys. Soc. 52 (17), 22 (2007).

Azadani, A. and Hirsa, A., “Protein Crystallization Induced and Enhanced via Hydrodynamics: Force Crystallization,” Bull. Amer. Phys. Soc. 51 (9), 193 (2006).

Leung, J. and Hirsa, A., “Mighty Morphing Monolayers: How Oscillatory Flow can Influence Phase Morphology,” Bull. Amer. Phys. Soc. 51 (9), 110 (2006).

Steen, P., Theisen, E., Vogel, M., Lopez, C., and Hirsa, A., “Capillary Oscillations of a Liquid Sphere Pinned on a Circle-of-Contact,” Bull. Amer. Phys. Soc. 51 (9), 111 (2006).

Gupta, A., Hirsa, A., and Borca-Tasciuc, D.-A., “Electroosmotic Micro-Pump Array for Local Control of Droplets,” Bull. Amer. Phys. Soc. 51 (9), 165 (2006).

Hirsa, A.H., Nejatbakhsh, A., Belfort, G., and Liu, H., “Protein Crystallization on Liquid Surface: Forced versus Natural Crystallization,” Bull. Amer. Phys. Soc. 50 (9), 88 (2005).

Leung, J., Hirsa, A.H., Lopez, J.M., and Vogel, M.J., “Monolayer Phase Coarsening using Oscillatory Flow,” Bull. Amer. Phys. Soc. 50 (9), 215 (2005).

Hwang, W., Ciuryla, M., Hirsa, A., and Borca-Tasciuc, T., "Micro-Scale Electrochemically Actuated Capillary Lens," BAPS 49 (9), 86 (2004).

López, C. and Hirsa, A., "Electrochemically Controlled Liquid Lens," BAPS 49 (9), 86 (2004)

Hirsa, A., Leung, J., Vogel, M., Lopez, J., "Effect of Flow with Inertia on Monolayer Mesoscale Structure," BAPS 49 (9), 90 (2004).

Leung, J., Hirsa, A., Blackburn, H., Marques, F., Lopez, J., "Three-Dimensional Modes in a Periodically Driven Elongated Cavity," BAPS 49 (9), 232 (2004).

Ciuryla, M., Chin, R., Hirsa, A., and Steen, P., "Making and Breaking Liquid Connections with a Capillary Switch," BAPS 49 (9), 236 (2004).

Lopez, J., Vogel, M., and Hirsa, A., "Surface Dilatational Viscosity of Langmuir Monolayers," BAPS 48 (10), 45-46 (2003).

Laytin, M., Lee, C.-C., Wirecki, A., Meyerholz, J., Hirsa, A., and Steen, P., "Capillary Micro-Switch Activation," BAPS 48 (10), 24 (2003).

Hirsa, A., Vogel, M., and Lopez, J., "Mesoscale and Macroscale Patterning of Langmuir Monolayers by Bulk Flow," BAPS 48 (10), 245 (2003).

Leung, J., Hirsa, A., Lopez, J., and Blackburn, H., "Endwall Effects in Periodically Driven Cavity Flow," BAPS 48 (10), 31 (2003).

Vogel, M.J., Steen, P.H., Bhandar, A.S., Hirsa, A.H., Cox, C.L., and Matalanis, C., "Bubbles and Beetles: Applications of Capillary Stability," Proceedings of the 1000 Islands Fluid Mechanics Meeting, Gannanoque, Ontario, Canada, May 9-11, 2003 (appeared in electronic form).

Hirsa, A., Miraghaie, R., Vogel, M., and Lopez, J., "Flow Induced Structuring on the Surface of Liquids: Shaping Monolayers via Bulk Flow Instabilities," BAPS 47 (10), 101 (2002).

Miraghaie, R., Hirsa, A., and Lopez, J., "Symmetry Breaking to a Rotating Wave in a Lid-Driven Cylinder with a Free," BAPS 47 (10), 101 (2002).

Vogel, M., Hirsa, A., Lopez, J., and Blackburn, H., "Spatio-Temporal Dynamics of a Periodically Driven Cavity Flow," BAPS 47 (10), 68 (2002).

Steen, P, Matalanis, C., Hirsa, A., and Cox, C., "Capillary Micro-Switches," BAPS 47 (10), 129-130 (2002).

Lopez, J.M., Hirsa, A.H., Miraghaie, R., and Marques, F., "Rotating Waves at the Air/Water Interface in a Swirling Cylinder Flow," BAPS 47 (10), 179-180 (2002).

Hirsa, A.H., Lopez, J.M., and Vogel, M.J., "Oscillatory-Driven Cavity Flow for Determination of Surface Dilatational Viscosity," BAPS 46 (10), 180 (2001).

Miraghaie, R., Hirsa, A.H., and Lopez, J.M., "Application of Deep-Channel Viscometer with Inertia for Measurement of Surface Shear Viscosity," BAPS 46 (10), 183 (2001).

Howell, D.J., Hirsa, A.H., Heidari, A.H., Braun, R.J., and Snow, S.A., "Measurement and Computation of Vertical Bounded Film Drainage with an Insoluble Monolayer," BAPS 46 (10), 176 (2001).

Vogel, J.M., Hirsa, A.H., and Lopez, J.M., "Measurements of a Free-Surface Oscillatory-Driven Cavity Flow," BAPS 46 (10), 181 (2001).

Vogel, M.J. and Hirsa, A.H., "Concentration Distribution Downstream of a Reynolds Ridge," BAPS 45 (9), 51-52 (2000).

Miraghaie, R., Hirsa, A.H., and Lopez, J.M, "Measurements of Free-Surface Velocity in a Swirling Flow in the Presence of Insoluble Monolayers," BAPS 45 (9), 52 (2000).

Hirsa, A.H., Lopez, J.M., and Miraghaie, R., "Navier-Stokes Computations of a Swirling Free-Surface Flow in the Presence of Insoluble Surfactants," BAPS 45 (9), 52 (2000).

Lopez, J.M. and Hirsa, A., "Computational Modeling of Interfacial Hydrodynamics incorporating Nonlinear Equation of State and Finite Surface Viscosities," BAPS 44 (8), 45 (1999).

Hirsa, A., Lopez, J.M., Joshi, A.A., and Miraghaie, R., "Measurements of the Velocity Field at an Air/Water Interface with an Insoluble Surfactant," BAPS 44 (8), 45 (1999).

Vogel, M.J., Hirsa, A., Kelley, J.S., and Korenowski, G.M., "Velocity Field Measurements Downstream of a Reynolds Ridge," BAPS 44 (8), 31-32 (1999).

Kelley, J.S., Korenowski, G.M., Vogel, M.J., and Hirsa, A., "Surfactant Distribution Measurements Downstream of a Reynolds Ridge," BAPS 44 (8), 32 (1999).

Hirsa, A., Korenowski, G.M., Ringuette, M.R., Joshi, A., and Lopez, J.M., "Measurements in a High Reynolds Number Deep-Channel Viscometer," BAPS 43 (9), 2077 (1998).

Judd, K.P., Rusak, Z., and Hirsa, A., "Experimental and Theoretical Studies of Vortex Breakdown Over a Delta Wing," BAPS 43 (9), 2011 (1998).

Lopez, J.M. and Hirsa, A., "Direct Determination of Surface Shear and Dilatational Viscosities," BAPS 43 (9), 2076-2077 (1998).

Hirsa, A., Lopez, J.M., and Mortzheim, J.P., "Direct Determination of Surface Dilatational Viscosity," BAPS 42 (11), 2176 (1997).

Korenowski, G.M., Hirsa, A., Van Wagenen, E., and Jin, H.J., "Optical Technique for the Areal Measurement of Surfactant Concentration as Applied to a Monolayer Downstream of a Reynolds Ridge," BAPS 42 (11), 2224 (1997).

Mortzheim, J.P., Gayton, J.D., and Hirsa, A., "Free Surface Velocity and Elevation Measurement Techniques as Applied to the Interaction of a Vortex Pair with a Contaminated Interface," BAPS 42 (11), 2163 (1997).

Gayton, J.D., Hirsa, A., Korenowski, G.M., and Logory, L.M., "Determination of Surface Viscosities by Surfactant Concentration and Velocity Field Measurements," BAPS 41 (9), 1746 (1996).

Hirsa, A., Lopez, J.M, and Kim, S., "Interaction of a Columnar Vortex with a Solid Wall," BAPS 41 (9), 1796 (1996).

Hirsa, A., Kim, S., and Harper, J.E., "Interaction of a Columnar Vortex with a Free Surface," BAPS 39 (9), 1905 (1994).

Korenowski, G.M., Hirsa, A., Gaines Jr., G.L., Logory, L.M., and Judd, C.D., "Velocity Field and Concentration Measurements During the Interaction of a Vortex Pair with a Free Surface," BAPS 39 (9), 1905 (1994).

Athans, R.E., and Hirsa, A., "Rapid Expansion of Near-Critical Liquid Iso-Octane Through a Converging and a Converging-Diverging Nozzle," BAPS 39 (9), 942 (1994).

Hirsa, A., and Logory, L.M., "Velocity Field in the Wake of a Surface-Piercing Flat Plate," BAPS 38 (12), 2283 (1993).

Anthony, D.G., Hirsa, A., and Logory, L.M., "Structure of Turbulence in the Wake of a Surface-piercing Flat Plate," BAPS 38 (12), 2283 (1993).

Gulen, S.C., Hirsa, A., Athans, R., Hynes, J., and Suchman, J., "Rapid Depressurization of Liquid Iso-Octane in a Converging Nozzle," BAPS 38 (12), 2212 (1993).

Logory, L.M., Hirsa, A., and Muschlitz, G., "Interaction of Wake Turbulence with a Free Surface," BAPS 37 (8), 1753 (1992).

Locke, C.A., Hirsa, A., Rubin, M.D., and Fenell, D., "Short-Wave Instability in a Laminar Vortex Pair," BAPS 37 (8), 1803 (1992).

Anthony, D.G., and Hirsa, A., "Effects of Swirl on a Turbulent Jet Interacting with a Free Surface," BAPS 37 (8), 1752 (1992).

Hirsa, A. and Willmarth, W.W., "Effect of Contaminants on the Interaction of a Vortex Pair with a Free Surface," BAPS 35 (10), 2267 (1990).

Willmarth, W.W., Anthony, D., and Hirsa, A., "Flow Field of a Submerged Turbulent Jet Interacting with a Clean Free Surface," BAPS 35 (10), 2322 (1990).Hirsa, A. and Willmarth, W.W., "2-D & 3-D Aspects of Vortex Pair Interaction with a Free Surface," BAPS , 34 (10), 2259 (1989).

Hirsa, A., Tryggvason, G., Willmarth, W.W., and Yu, D., "Interaction of a Vortex Pair with a Free Surface," BAPS , 33 (10), 2278 (1988).

Willmarth, W.W. and Hirsa, A., "Free Surface Motion Produced by Trailing Vortices," BAPS , 33 (10), 2278 (1988).

Professional and Public Lectures:
Invited Lectures

“2D Protein Crystallization Induced by Shearing Bulk Flow: What can Classical Fluid Mechanics Tell us?” Invited presentation in the School of Engineering, UC Merced, CA (2008).

“2D Protein Crystallization Induced by Shearing Bulk Flow: What can Classical Fluid Mechanics Tell us?” Invited presentation in the Engineering Department, Harvey Mudd College, Claremont, CA (2007).

“Low-Dissipation Capillary Switches: Science & Engineering,” Invited seminar in the Chemical Engineering Department, Purdue University, West Lafayette, IN (2007).

“Monolayer Hydrodynamics.” A series of six (6) lectures presented in the Mechanical Engineering Department, UC Santa Barbara, CA and simulcasted at Sandia National Laboratory, NM (2007).

“2D protein crystallization induced by shearing bulk flow: What can classical fluid mechanics tell us?” Invited seminar in Mechanical Engineering, Caltech, Pasadena, CA (2007).

“Low-Dissipation Capillary Switches: Science & Engineering,” Invited seminar in the Chemical Engineering Department, UC Santa Barbara, CA (2007).

“Low-Dissipation Capillary Switches at Small Scales,” Invited seminar at the Benjamin Levich Institute for Physico-Chemical Hydrodynamics, City College of New York, NY (2005).

"Hydrodynamics of Insoluble (Langmuir) Monolayers," Invited seminar in the Department of Chemical Engineering, The Pennsylvania State University, University Park, PA (2001).

"Measurement and Computation of Insoluble Monolayers on Uniform or Rotating Flows," Invited seminar in the Department of Mathematical Sciences, University of Delaware, Newark, DE (2001).

"Direct Determination of Interfacial Viscosities via Velocity and Surfactant Concentration Measurements," Invited seminar at Dow Corning Corp., Midland, MI (2000).

"Determination of Air/Water Interfacial Properties Utilizing a Rotating Flow," Invited presentation in the Stability, Transition and Turbulence Seminar series, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY (2000).

"Determination of Air/Water Interfacial Properties Utilizing a Planar flow," Invited seminar in the School of Chemical Engineering, Cornell University, Ithaca, NY (2000).

"Direct Determination and Modeling of Intrinsic Interfacial Viscosities at a Gas/Liquid Interface," Invited seminar in the Workshop on Surfactant Flows at Interfaces, Laguna Beach, CA (2000).

"Dynamics of Surfactant-Influenced Air/Water Interfaces," Invited seminar in the School of Chemical Engineering, Cornell University, Ithaca, NY (1999).

"Measurements of the Velocity Field and Surfactant Surface Concentration Behind a Reynolds Ridge," Invited seminar in the Department of Aerospace and Mechanical Engineering, Boston University, Boston, MA (1999).

"Direct Determination of Interfacial Viscosities via Velocity and Surfactant Concentration Measurements at an Air/Water Interface," Invited seminar in the Department of Mechanical Engineering, State University of New York, Binghamton, NY (1999).

"Measurements and Computations of Free Surface Flows in the Presence of Surfactants," Invited seminar in the Department of Mechanical Engineering, University of Maryland, College Park, MD (1998).

"Hydrodynamic Coupling of Viscoelastic Gas/Liquid Interfaces," Invited seminar in the Department of Mathematics, The Pennsylvania State University, University Park, PA (1997).

"Fluid Dynamics of Contaminated Gas/Liquid Interfaces," Invited seminar in the Department of Environmental and Energy Engineering, Rensselaer Polytechnic Institute (1997).

"Interaction of Surfactants with Shear Flows and Surface Waves," Invited seminar at the Office of Naval Research, Remote Sensing Program, Arlington, VA (1996).

"Interaction of Turbulence with an Air-Water Interface and the Effects of Surfactants," Invited seminar in the Department of Aerospace and Mechanical Engineering, State University of New York, Buffalo, NY (1996).

"Effects of Surfactants on Free-Surface Turbulence," Invited seminar at the Second Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1994).

"On the Interaction of Vortical Flows with a Free Surface," Invited seminar at the Rutgers University, Mechanical and Aerospace Engr. Colloquium Series, Piscataway, NJ (1994).

"Dynamics of Trailing Vortices near Boundaries," Invited seminar in the Department of Aeronautics, San Jose State University, San Jose, CA (1990).

"An Experimental Investigation of Vortex Pair Interaction with a Clean or Contaminated Free Surface," Invited seminar in the Department of Mechanical Engineering, Aeronautical Engineering and Mechanics, Rensselaer Polytechnic Institute (1990).

Contributed Lectures

"Effect of Flow with Inertia on Monolayer Mesoscale Structure," 57th Annual Conference of the American Physical Society, Div. Fluid Dynamics, Seattle, WA (2004).

Mesoscale and Macroscale Patterning of Langmuir Monolayers by Bulk Flow," 56th Annual Conference of the American Physical Society, Div. Fluid Dynamics, East Rutherford, NJ (2003).

"Flow Induced Structuring on the Surface of Liquids: Shaping Monolayers via Bulk Flow Instabilities," 55th Annual Conference of the American Physical Society, Div. Fluid Dynamics, Dallas, TX (2002).

"Symmetry Breaking to a Rotating Wave in a Lid-Driven Cylinder with a Free," 55th Annual Conference of the American Physical Society, Div. Fluid Dynamics, Dallas, TX (2002).

"Surface Tension Gradients due to Bulk Flow Coupling at an Air/Water Interface," 75th American Chemical Society, Colloid and Surface Science Symposium, Pittsburgh, PA (2001).

"Navier-Stokes Computations of a Swirling Free-Surface Flow in the Presence of Insoluble Surfactants," 53rd Annual Conference of the American Physical Society, Div. Fluid Dynamics, Washington, DC (2000).

"Measurements of the Velocity Field at an Air/Water Interface with an Insoluble Surfactant," 52nd Annual Conference of the American Physical Society, Div. Fluid Dynamics, New Orleans, LA (1999).

"Influence of Nonlinear Equation of State on Contamination Fronts at Air/Water Interfaces," poster presented at conference on Interfaces for the Twenty First Century, Monterey, CA (1999).

"Measurements in a High Reynolds Number Deep-Channel Viscometer," 51st Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Philadelphia, PA (1998).

"Direct Determination of Concentration-Dependent Surface Shear and Dilatational Viscosities at a Contaminated Gas/Liquid Interface: Theoretical and Practical Considerations," Sixth Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1998).

"Direct Determination of Surface Shear and Dilatational Viscosities," 51st Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Philadelphia, PA (1998).

"Direct Determination of Surface Dilatational Viscosity," 50th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, San Francisco, CA (1997).

"Free Surface Velocity and Elevation Measurement Techniques as Applied to the Interaction of a Vortex Pair with a Contaminated Interface," 50th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, San Francisco, CA (1997).

"Interaction of a Columnar Vortex with a Solid Wall," 49th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Syracuse, NY (1996).

"Rheological Behavior of Surfactants as Obtained by Surface Concentration and Bulk Velocity Measurements in Vortex Flows," Third Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1995).

"A Photographic Study of a Small Flashing Jet," ASME Fluids Engineering Annual Conference, Hilton Head Island, SC (1995).

"Velocity Field and Surfactant Concentration Measurement Techniques as Applied to the Interaction of a Vortex Pair with a Free Surface," ASME Fluids Engineering Annual Conference, Hilton Head Island, SC (1995).

"Interaction of a Columnar Vortex with a Free Surface," 47th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Atlanta, GA (1994).

"Structure of Turbulence in the Surface Layer of a Flat-Plate Wake," Second Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1994).

"Structure of Turbulence in the Wake of a Surface-piercing Flat Plate," 46th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Albuquerque, NM (1993).

"Velocity Field in the Wake of a Surface-Piercing Flat Plate," 46th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Albuquerque, NM (1993).

"Interaction of Wake Turbulence with a Free Surface," First Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1993).

"Interaction of Wake Turbulence with a Free Surface," Third Annual Free Surface Vorticity Workshop, sponsored by ONR - UC San Diego, La Jolla, CA (1992).

"Measurements and Computations of Vortex Pair Interaction with a Clean or Contaminated Free Surface," Eighteenth Symposium of Naval Hydrodynamics - Univ. Michigan, Ann Arbor, MI (1990).

"Effect of Contaminants on the Interaction of a Vortex Pair with a Free Surface," 43rd Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Cornell University, Ithaca, NY (1990).

"2-D & 3-D Aspects of Vortex Pair Interaction with a Free Surface," 42nd Annual Conference of the American Physical Society, Div. of Fluid Dynamics, NASA Ames Res. Center, Palo Alto, CA (1989).

"Interaction of a Vortex Pair with a Free Surface," 41st Annual Conference of the American Physical Society, Div. of Fluid Dynamics, State University of New York, Buffalo, NY (1988).

Teaching:

Pos-doc Supervision:

Thesis Supervision: Ph.D. (committee chair for the following individuals:)

Thesis Supervision: M.S.

Professional Societies:

American Physical Society (Division of Fluid Dynamics)
Member (1988 - Present)

Session Chairman :

"Turbulent Jets II," 45th Ann. Conf., Tallahassee, FL, November 22-24, 1992
"Experimental Techniques," 50th Ann. Conference, San Francisco, CA, November 23-25, 1997
"Vortex Dynamics III," 51st Ann. Conf., PA, November 22-24, 1998
"Surface Measurements Techniques," 52nd Ann. Conf., New Orleans, LA, November 21-23, 1999
"Surface Tension I," 53rd Ann. Conf., Washington, DC, November 19-21, 2000
"Drops & Bubbles II," 55th Ann. Conf., Dallas, TX, November 24-26, 2002
"Jets, Wakes & Shear Layers III," 56th Ann. Conf., Meadowlands, NJ, November 23-25, 2003

American Society of Mechanical Engineers

Member (2001-Present)

Session Chairman "Unsteady Aerodynamics" session

Vice Chairman "Internal Flows" session Fluids Engineering Annual Conference, Washington, DC, June 20 - 24, 1993

Session Chairman "Flow Visualization and Image Processing of Multiphase Systems: Applications" Fluids Engineering Annual Conference, Hilton Head Island, SC, August 13-18, 1995

American Chemical Society
Member (2001 - Present)

American Association of University Professors
Member (1992 - 1994; 2002 - Present)

Book Reviewer:
Wiley Publishers - Aerodynamic, Aeronautics, and Flight Mechanics, by B.W. McCormick, Second Edition, 1991.
Harper-Collins Publishers - Thermodynamics for the Engineering Sciences, 1995.
PWS Publishing - Engineering Fluid Mechanics, 1997.

Journal Reviewer:
ACTA Mechanica
AIAA Journal
Applied Physics Letters
Colloids and Interfaces (A: Physicochemical & Engineering Aspects)
Environmental Engineering Science
Experiments in Fluids
International Journal of Offshore and Polar Engineering
Journal of Colloid and Interface Science
Journal of Fluids Engineering
Journal of Fluid Mechanics
Journal of Geophysical Research (Oceans)
Journal of Non-Newtonian Fluid Mechanics
Physics of Fluids
Theoretical and Computational Fluid Dynamics

Miscellaneous:
Holder, FAA-issued "Airframe and Power Plant Mechanic Certificate"