Fri, Oct 30, 2020 @ 03:00 PM - 04:00 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Speaker: Arturo Cajal, USC AME PhD Student
Talk Title: Modeling natural transition in RANS simulations
Abstract: One approach for improving the accuracy of Reynolds-Averaged Navier Stokes (RANS) simulations is to model the transition from laminar to turbulent flow process, particularly for low Reynolds numbers and transitional flow applications. In this work, two RANS turbulence models and three RANS transitional models, with different formulation approaches, are assessed and compared. Physics-based models offer a broader range of applicability because no empirical correlations are needed to model the transition process. Additionally, these models avoid some of the current Computational Fluid Dynamics limitations such as the use of integral quantities in unstructured grids and/or parallel computations. Thus, the physics-based Laminar Kinetic Energy model was chosen to include the effects of crossflow instabilities to make it more robust and potentially improve its predictive capability.
Biography: Arturo is a Ph.D. student working in Prof. A. Uranga Aerodynamics Design and Research Laboratory. His research focuses on modeling transition from laminar to turbulent flow for low Reynolds number flows. Arturo received his B.S. in Mechanical Engineering from the National Autonomous University of Mexico (UNAM) in 2016, and his M.S. in Mechanical Engineering from USC in 2018.
Host: AME Department
More Info: https://usc.zoom.us/j/92144809085
Audiences: Everyone Is Invited
Contact: Christine Franks