Seminar 2016-02 Ali Uzun: Wall-Resolved Large Eddy Simulations of Separated Flows

Topic: 70th NIA CFD Seminar: Wall-Resolved Large Eddy Simulations of Separated Flows

Date: Wednesday, February 10, 2016

Time: 11:00am-noon (EST)

Room: NIA, Rm 137

Speaker: Ali Uzun

Webcast Link:

Abstract: This talk will discuss our ongoing work on the wall-resolved large eddy simulations (LES) of high Reynolds number separated flows. Such flows are very challenging to predict accurately mainly because of the significant grid resolution requirements for high Reynolds number turbulence. Our goal in these well-resolved simulations is to obtain good-quality reliable data to guide the development of improved/new wall models, which can in turn be used in future wall-modeled simulations of separated flows with significantly reduced computational cost. A turbulence simulation methodology based on high-fidelity numerical schemes is being used to perform the large-scale simulations. This talk will discuss several important issues that were encountered during the course of this work and present representative results from the calculations. Comparisons with available experimental measurements will be made to assess the predictive capability of the simulations.

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.