Prof. Yagoobi of Worcester Polytechnic Institute

Electrohydrodynamic (EHD) deals with the interaction of electric field and dielectric fluid flow. In this tutorial the fundamentals of EHD will be presented followed by several applications such as cooling of high-power electronics in the presence and absence of gravity. 

The electrostatic equations coupled with the transport equations (i.e., momentum and energy rate equations) will be presented. The resultant three different types of EHD pumping (ion-drag pumping, induction pumping, and conduction pumping) will be described. Furthermore, the EHD driven liquid film flow boiling in the presence of dielectrophoretic mechanism will be discussed. The results of experiments conducted aboard NASA’s variable-gravity parabolic flights as well as the Blue Origin’s New Shepard rocket will be presented. 

From an application perspective, the EHD pumping technology is expected to provide technological advances that will support NASA's various missions. EHD pumps are simple in design, light weight, non-mechanical, free of vibrations and noise, and they allow for effective active control of heat transfer and mass transport. EHD pumps require minimal electric power to operate. The resultant heat transport capacity is typically three orders of magnitude larger than the electric input power.

Biography:

Prof. Jamal Yagoobi received his PhD degree from the University of Illinois at Urbana-Champaign in mechanical engineering. After receiving his PhD, he worked for Westvaco Corporation as a research engineer before joining Texas A&M University (TAMU) in 1987. At TAMU, he was the Paul John Professor as well as the TEES Senior Fellow. In 2002, he joined Illinois Institute of Technology as the Chair of the department of Mechanical, Materials, and Aerospace Engineering. In 2012, he joined WPI as the Head of the Mechanical and Materials Engineering Department. He is currently George F. Fuller Professor at WPI. Yagoobi is a fellow ASME and a fellow IEEE. 

Yagoobi’s research expertise includes enhancement of heat and mass transfer with electrohydrodynamic in the presence and absence of gravity, heat and mass transfer in porous media, and enhancement of heat transfer with phase-change materials. He is the founding director of an NSF Industry University Cooperative Research Center entitled, “Center for Advanced Research in Drying – CARD”. Yagoobi has over 370 peer-reviewed journal and conference publications and book chapters, ten patents (plus 4 provisional patents), and a licensed technology as well as a licensed software code. He has received numerous research and teaching awards including IEEE Hans Tropper Memorial Lecture Award and PI Tau Sigma and ASME Gustus L. Larson Memorial Award.

Email:

Address:Worcester Polytechnic Institute, Mechanical and Materials Engineering Department, Worcester, Massachusetts, United States, 01609