Dr. Aidun joined the Woodruff School as a Professor in 2003 after completion of a two-year period as program director at the National Science Foundation. He began at Tech in 1988 as an Assistant Professor at the Institute of Paper Science and Technology. Prior, he was a research Scientist at Battelle Research Laboratories, Postdoctoral Associate at Cornell University and Senior Research Consultant at the National Science Foundation's Supercomputer Center at Cornell. 

Dr. Aidun's research is at the intersection between fundamentals of the physics of complex fluids/thermal transport and applications to engineering and biotransport. He has a diverse research portfolio in fluid mechanics, bioengineering, renewable bioproducts and decarbonization of industrial processes. 

A major focus has been to understand the physics of blood cell transport and interaction with glycoproteins (e.g., vWF) with applications to cardiovascular diseases.

Abdel-Khalik joined the Georgia Tech faculty as the Georgia Power Distinguished Professor in 1987. He was appointed to his current position as the Southern Nuclear Distinguished Professor in 1993. He served as Associate Director of the Woodruff School of Mechanical Engineering between 1990 and 1992 and as the Georgia Tech Secretary of the Faculty between 2002 and 2006. He served as a member of the USNRC Advisory Committee on Reactor Safeguards (ACRS) between 2006 and 2012, including two years as Chairman (2009-2011).  Prior to joining the Georgia Tech faculty, Abdel-Khalik served as a faculty member in the Nuclear Engineering and Engineering Physics Department (1976-1987) and as a Postdoctoral Fellow in Chemical Engineering (1973-1975) at the University of Wisconsin-Madison. Abdel-Khalik also served as a Senior Engineer at Babcock and Wilcox Nuclear Power Generation Division (1975); as a Guest Research Scientist at the Nuclear Research Center in Karlsruhe, Germany (1979); and as an Invited Professor at EPFL, Lausanne, Switzerland (1982).

Abdel-Khalik currently serves as a member of the External Advisory Boards for the School of Nuclear Engineering at Purdue University and the Mechanical Engineering Department of King Saud University in Riyadh, Saudi Arabia. He also serves as a member of the Board of Trustees for Badr University in Cairo, Egypt.