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Ali Koşar
Vice President - Research
EFSUN Director
(216) 483 9621

EFSUN Director


2003- 2006 Ph.D., Rensselaer Polytechnic Institute Troy, NY, USA 2001-2003 M.S., Rensselaer Polytechnic Institute Troy, NY, USA 1997-2001 B.S., Bosphorus University (Boğaziçi University) Istanbul, Turkey 1988-1996 Istanbul High School (Istanbul Erkek Lisesi) Istanbul, Turkey

Areas of Interest

Ali Koşar's research interests lie in heat and fluid flow in micro heat sinks, micro/nano scale cooling, cavitation, boiling heat transfer, and MEMS (Microelectromechanical Systems). He has been conducting pioneering research on single-phase and boiling heat transfer, single-phase and two-phase pressure drop, critical heat flux (CHF), and cavitation in MEMS-based pin fin, second generation microchannel heat sinks. The results of his research have generated many papers on micro heat sinks in some prestigious journals like Journal of Heat Transfer and International Journal of Heat Transfer. Moreover, he also has some conference papers. RESEARCH INTERESTS Two-phase flow, Boiling Heat Transfer, Convective heat transfer, Critical Heat Flux, Electronic cooling, Microsystems, Nano/micro scale Heat Transfer, Minuatorization of heat sinks, Microfluidics



Book Section / Chapter

JOURNAL PUBLICATIONS  1. Schneider, B.R., Koşar, A., and Peles, Y., “Hydrodynamic Cavitation and Boiling in Refrigerant (R-123) Flow inside Microchannels,” International Journal of Heat and Mass Transfer, 50(13-14), pp. 2838-2854, 2007. 2. Koşar, A. and Peles, Y., “Boiling Heat Transfer in a Hydrofoil-based Micro Pin Fin Heat Sink,” International Journal of Heat and Mass Transfer, 50(5-6), pp. 1018-1034, 2007. 3. Koşar, A. and Peles, Y., “Critical Heat Flux of R-123 in Silicon-based Microchannels,” Journal of Heat Transfer, 129(7), pp. 844-851, 2007. 4. Koşar, A. and Peles, Y., “Thermal-Hydraulic Performance of MEMS-Based Pin Fin Heat Sink,” Journal of Heat Transfer, 12 (2), pp. 121-131, 2006. 5. Koşar, A., Kuo C.-J., and Peles, Y., “Suppression of Boiling Flow Oscillations in Parallel Microchannels by Inlet Restrictors,” Journal of Heat Transfer, 128(3), pp. 251-260, 2006. 6. Jensen, M.K., Peles, Y., Srikar, V., Koşar, A., and Kuo, C.-J., “Methods and Preliminary Results on Enhanced Boiling Heat Transfer in Second Generation Microchannels,” Microfluidics and Nanofluidics, 2(5), pp. 387-397, 2006. 7. Koşar, A. and Peles, Y., “Convective Flow of a Refrigerant (R-123) across a Bank of Micro Pin Fins,” International Journal of Heat and Mass Transfer, 49(17-18), pp. 3142-3155, 2006.