Investigation of Turbulence Closure Models for Challenging Aerodynamic Flows

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The primary objective of the project is to investigate and resolve MAYA's challenge to simulate complex turbulent aerodynamic flows. To solve this challenge, the task would be to investigate their present shortcomings and then implement, validate, and verify the necessary algorithms for the k-epsilon, Wilcox k-omega, and the Mentor k-omega SST turbulence models within MAYA's Code-base for external aerodynamic flows. MAYA's commercial computational fluid dynamics solvers have a widespread usage over a range of applications including but not limited to electronics cooling, process analysis and automotive heat transfer. However, they have an immediate market need to extend their software for aerodynamic analysis, i.e., computation of lift and drag forces on vehicles and engineering structures. The research-oriented computational fluid dynamics solvers that are being developed in Professor Nadarajah's group contain many cutting-edge technologies for the analysis of aerodynamic flows and hence this short term project may be a starting point for a longer term research collaboration. This project focuses on developing recommendations of state-of-the-art technologies which could be applied to MAYA's solvers for transonic aerodynamic flows. In particular, we wish to focus on recommendations regarding the further development of two-equation turbulence models. The project will focus on comparing MAYA's parallel CFD solver with a number of NASA benchmark cases for which either experimental or numerical results are available. The results of the benchmark cases will be compared with published results, and those from Professor Nadarajah's solver.