Vijay K. Dhir

Vijay K. Dhir is an Indian-born American engineer and academic noted for pioneering research in nuclear engineering and thermal hydraulics, and for academic leadership at a major public research university. He directed large experimental programs and graduate education initiatives, interacting with national laboratories and international organizations while receiving multiple professional honors. His work influenced reactor safety analysis, multiphase flow modeling, and heat transfer applications across energy and aerospace sectors.

Early life and education

Born in India, he completed undergraduate studies at the Indian Institute of Technology Madras before pursuing graduate education in Canada, earning advanced degrees at the University of Toronto and the University of British Columbia. During his doctoral and postdoctoral training he worked on problems related to two-phase flow and heat transfer, collaborating with researchers associated with institutions such as the Canadian Nuclear Laboratories and networks connected to the Atomic Energy of Canada Limited. His training period connected him to contemporaries from Massachusetts Institute of Technology, Stanford University, and Imperial College London who were developing modern reactor thermal-hydraulics methodologies.

Academic and research career

He joined the faculty at the University of California, Los Angeles where he built a research group focused on thermal hydraulics, multiphase flow, and reactor safety, mentoring students who later held positions at the Argonne National Laboratory, Oak Ridge National Laboratory, and Lawrence Livermore National Laboratory. His laboratory collaborated with programs at the National Aeronautics and Space Administration, the Electric Power Research Institute, and the U.S. Nuclear Regulatory Commission to address experimental and computational challenges in boiling, flashing, and condensation phenomena. He served on advisory committees for the International Atomic Energy Agency and participated in conferences organized by the American Nuclear Society, the Heat Transfer Society, and the American Society of Mechanical Engineers.

Contributions to nuclear engineering and thermal hydraulics

He advanced understanding of boiling heat transfer, transient two-phase flow, and critical heat flux through experiments and modeling that informed reactor design and safety assessments for pressurized water reactors and boiling water reactors like those by Westinghouse Electric Company and General Electric. His research outputs impacted methods used at Sandia National Laboratories and Brookhaven National Laboratory for loss-of-coolant accident analysis, and influenced best practices promoted by the Nuclear Energy Agency and the International Thermonuclear Experimental Reactor community. He developed scaling approaches and correlations used alongside computational tools such as system codes originating from RELAP5 and computational frameworks associated with ANSYS and COMSOL Multiphysics to predict boiling, condensation, and flow instabilities.

Administrative leadership and awards

As a senior administrator at UCLA, he held leadership roles overseeing engineering departments and interdisciplinary centers, interacting with campus units including the Henry Samueli School of Engineering and Applied Science and the California NanoSystems Institute. He received professional recognition from organizations such as the American Society of Mechanical Engineers, the American Nuclear Society, and the National Academy of Engineering, and was honored with awards from foundations linked to the National Science Foundation and industry partners like the Bechtel Corporation and Westinghouse Electric Company. He served on panels for the National Research Council and contributed to advisory boards for initiatives funded by the Department of Energy and state agencies such as the California Energy Commission.

Publications and patents

His publication record includes peer-reviewed articles in journals associated with the American Institute of Physics, the Institute of Physics, and the American Society of Mechanical Engineers, as well as chapters in edited volumes published by presses connected to the Elsevier and Springer Nature groups. He authored and coauthored technical reports with collaborators at Lawrence Berkeley National Laboratory and international partners from institutions like the Korea Advanced Institute of Science and Technology and the Tokyo Institute of Technology. His work is cited in standards and guidelines developed by the American Nuclear Society and informed patents and inventions licensed to industrial partners including firms modeled after General Electric and Siemens.

Category:Indian engineers Category:American engineers Category:University of California, Los Angeles faculty