Listen to a DARPA program manager discuss their research initiatives, Feb. 8

Tempe campus skyline at night with a hand holding up the fork symbol

Come and attend an intriguing seminar on thermal management here at ASU! On Wednesday, Feb. 8, 2023, at 2:30 p.m. in LSA 101 and online, Yogendra Joshi will be giving a seminar on Two Phase Heat Transfer in Enhanced Microgaps and Thermal Management of Microsystems Research Initiatives at DARPA. Yogendra Yoshi is a program manager in the DARPA Microsystems Technology Office (MTO) as well as a faculty member at Georgia Tech. He will be discussing his research and his programs at DARPA.

Two Phase Heat Transfer in Enhanced Microgaps and Thermal Management of Microsystems Research Initiatives at DARPA seminar
Wednesday, Feb. 8, 2023
2:30 p.m.
Life Sciences Center A-Wing (LSA) 101, Tempe campus [map]
Online Zoom link (passcode: 667235)


Two-phase internal flows in microgaps with passage hydraulic diameters of 100 um — 1,000 um are of interest in electronics thermal management, transport electrification and portable microsystems. To enhance heat transfer coefficients in these configurations, structured surfaces are often employed. Understanding of two-phase flow and thermal transport in such configurations continues to be an active area of research. The first part of this talk will present recent computational and experimental results from investigations of two-phased forced convection, and capillary assisted transport in structured microgaps.

While many challenges remain, experimentally validated modeling of such two-phase flows presents a promising approach for understanding the thermal transport in these configurations. The second part of the talk will provide an overview of current thermal management initiatives at the Defense Advanced Projects Research Agency (DARPA), with a focus on three-dimensional heterogeneous integration based microsystems.


Yogendra Joshi is Professor and John M. McKenney and Warren D. Shiver Distinguished Chair at the G.W. Woodruff School of Mechanical Engineering at the Georgia Institute of Technology. He is currently a Program Manager at the Defense Advanced Research Projects Agency (DARPA) Microsystems Technology Office. His research interests are in multi-scale thermal management. He is the author or co-aufghtor of over four-hundred fifty publications in this area, including over two hundred twenty five journal articles.

He received his B.Tech. in Mechanical Engineering from the Indian Institute of Technology (Kanpur) in 1979, M.S. in Mechanical Engineering from the State University of New York at Buffalo in 1981 and Ph.D. in Mechanical Engineering and Applied Mechanics from the University of Pennsylvania in 1984. He has served as the Principal Investigator for multiple Defense Advanced Research Projects Agency (DARPA) programs and Office of Naval Research Consortium for Resource-Secure Outposts (CORSO). He was Site Director for the National Science Foundation Industry/University Cooperative Research Center on Energy Efficient Electronic Systems. He is an elected fellow of the ASME, the American Association for the Advancement of Science and IEEE.

He was a co-recipient of ASME Curriculum Innovation Award (1999), Inventor Recognition Award from the Semiconductor Research Corporation (2001), the ASME Electronic and Photonic Packaging Division Outstanding Contribution Award in Thermal Management (2006), ASME J. of Electronics Packaging Best Paper of the Year Award (2008), IBM Faculty Award (2008), IEEE SemiTherm Significant Contributor Award (2009), IIT Kanpur Distinguished Alumnus Award (2011), ASME InterPack Achievement AWARD (2011), ITherm Achievement Award (2012), ASME Heat Transfer Memorial Award (2013) and AIChe Donald Q. Kern Award (2018).