报告摘要：To provide an overview of the  current state-of-the-art of heat transfer augmentation schemes employed for internal cooling of turbine blades and components, results from an extensive literature review are presented with data from internal cooling channels, both with and without rotation. When rotation is present, overall thermal performance in smooth channels is affected more by Reynolds number than rotation number. Comparisons between existing rotating channel experimental data and the Ligrani et al. results show that rotation has little effect on overall thermal performance as a function of friction factor. Differences in local Nusselt number ratios for pressure sides and suction sides are generally a result of increasing rotation numbers, and the rotation induced secondary flows caused by Coriolis vortices. Also considered are effects of buoyancy parameter, inlet density ratio, channel geometry, and wall heating arrangements.

报告人简介：Dr. Phil Ligrani is currently the Oliver L. Parks Endowed Chair, and Director of Graduate Programs at Parks College of Saint Louis University. His previous academic position was as the Donald Schultz Professor of Turbomachinery in the Department of Engineering Science at the University of Oxford. Research interests include turbomachinery, convective heat transfer, and fluid mechanics, as well as micro-fluidics, fractionation, and separation science, including SPLITT Fractionation.