The Influence of Mesh Characteristics on External Airflow CFD Simulations of the DrivAer Model
Speaker: Pravin Peddiraju, BETA CAE Systems
Presentation
Abstract
Over the years Computational Fluid Dynamics has become an integral part of the design process in various high tech industries. Due to this reliance on CFD, there is always a need to validate CFD simulation results with experiments for realistic models and thereby develop best practices for performing numerical simulations. The robustness and accuracy of numerical simulations is often dependent on the meshes used for the simulations. This study explores these critical aspects through a comparison of simulation results with experimental data for the DrivAer model—a representative detailed automotive geometry. As part of the study, a variety of meshes that differ in quality, density, and the type of elements are generated using the commercial pre-processor ANSA and their effect on the solution convergence and accuracy is thoroughly examined. In addition, the impact of steady state and transient approaches, and wind tunnel shape is also investigated.
Biography
Pravin Peddiraju received his Bachelor of Technology degree in Mechanical Engineering from the Indian Institute of Technology—Chennai, and Master of Science degree in Aerospace Engineering from Texas A&M University, College Station, TX. He is currently working at BETA CAE Systems, USA Inc, as the Team Lead for CFD applications. At BETA CAE Systems, his primary focus is on the application of its flagship CAE pre- and post-processing software ANSA and μETA for CFD simulations.