03-21-2017 | Ali Uzun: Wall-Resolved Large Eddy Simulations of Separated Flows Part Two

Topic: 84th NIA CFD Seminar: Wall-Resolved Large Eddy Simulations of Separated Flows: Part Two

Date: Tuesday, March 21, 2017

Time: 11:00am-noon (EST)

Room: NIA, Rm137

Speaker: Ali Uzun

Webcast link: http://nia-mediasite.nianet.org/NIAMediasite100/Play/5e697dac8df14bc9af39cbc17fe530841d?catalog=fe540232-73ef-4460-8462-0d8a1a25ea58

Abstract: This talk will discuss our ongoing work on the wall-resolved large eddy simulations (WRLES) of complex high Reynolds number separated flows. Such flows are very challenging to predict accurately due to the significant computational requirements of eddy-resolving simulations for high Reynolds number turbulence. Recent improvements in computing capability and numerical algorithms are now making it more feasible to simulate such flows using billions of grid points. This talk will present an overview of the work completed since our previous related presentation given in the NIA CFD Seminar Series in February 2016. Several problems encountered during the course of this work will be discussed and viable solutions will be presented. Representative results from the benchmark NASA wall-mounted hump and the Bachalo-Johnson transonic shock-induced flow separation problems will be shown. Comparisons with available experimental measurements will be made to assess the predictive capability of the simulations.

Speaker Bio: Dr. Ali Uzun joined NIA as a Senior Research Scientist in July 2015. He received his Ph.D. in Aeronautics & Astronautics from Purdue University in 2003. He joined the Florida State University as a post-doctoral research associate immediately after completing his Ph.D. and later became a Research Scientist at the Florida Center for Advanced Aero-Propulsion, Florida State University. His current research interests include computational fluid dynamics using high-order numerical methods, turbulence simulations, computational aeroacoustics and parallel computing.