Education

Ph.D., Mechanical Engineering
Virginia Polytechnic Institute

M.S., Mechanical Engineering
Auburn University

B.S., Mechanical Engineering
Auburn University

Contact Information

Email
Website
615-343-6959
335 Olin Hall
VU Mailbox: PMB 351592, Nashville, TN 37235-1592 USA


Greg Walker

Associate Professor of Mechanical Engineering
Associate Professor of Electrical Engineering
Director of Graduate Studies in Interdisciplinary Materials Science

Research Focus

micro-scale heat transfer, heat flux measurement, energy transport processes, ultrasonic pyrometry, thermographic phospors, energy conversion devices, high-performance computing

Current Projects

Thermal Physics Laboratory 
Professor D. G. Walker
The Thermal Physics Lab is dedicated to scientific discovery at the frontiers of heat transfer. Current research includes investigation of new transient thermometry using thermographic phosphors, modeling and simulation of noncontinuum energy transport in microelectronic devices, quantum energy conversion devices, radiation effects in nanostructures, and novel electronics cooling technologies. All efforts are grounded in fundamental thermo-physical processes but expand the boundaries of traditional heat transfer applications.

Publications

Bulusu and D. G. Walker, `` Quantum Modeling of Thermoelectric Properties of Si/Ge/Si Superlattices,'' accepted for publication, IEEE Transactions on Electron Devices, Vol. 55, No. 1, pp. 423--429, January, 2008. 

Bulusu and D.G. Walker, ``Quantum modeling of thermoelectric performance of strained Si/Ge/Si superlattices using the nonequilibrium Green's function method,'' Journal of Applied Physics, Vol. 102, No. 7, October 2007, 073713.

Bulusu and D.G. Walker, ``Modeling of thermoelectric properties of semiconductor thin films with quantum and scattering effects,'' Journal of Heat Transfer, Vol. 129, No. 4, April, 2007, pp. 492--499.

D.G. Walker and S.W. Allison, ``Transient measurements using thermographic phosphors,'' ISA Transactions, Vol. 46, January, 2007, pp. 15--20.

R.D. Harvey, D.G. Walker and K.D. Frampton, ``Enhancing performance of thermoelectric coolers through the application of distributed control,'' IEEE Transactions on Components and Packaging Technologies, Vol. 30, No. 2, June 2007, pp. 330--336.


View Faculty by Department

Intellectual Neighborhoods

  • Biomedical Imaging and Biophotonics
  • Surgery and Engineering
  • Regenerative Medicine
  • Rehabilitation Engineering
  • Nano Science and Technology
  • Energy and Natural Resources
  • Risk and Reliability
  • Big Data
  • Cyber Physical Systems