Journal Article Japan Aerospace Exploration Agency Studies for the Second High-Lift Prediction Workshop

Murayama, Mitsuhiro  ,  Yamamoto, Kazuomi  ,  Ito, Yasushi  ,  Hirai, Tohru  ,  Tanaka, Kentaro  ,  村山, 光宏  ,  山本, 一臣  ,  伊藤, 靖  ,  平井, 享  ,  田中, 健太郎

52 ( 4 )  , pp.1026 - 1041 , 2015-07 , American Institute of Aeronautics and Astronautics
This paper summarizes Japan Aerospace Exploration Agency studies using a structured grid solver UPACS and an unstructured grid solver TAS-code for the second AIAA CFD High-Lift Prediction Workshop test cases and follow-on problems. Computations are performed for the grid convergence study using the configuration without any slat tracks and flap track fairings on a series of multi-block structured grids and a series of unstructured grids provided by the High Lift Prediction Workshop committee. In this paper, the following are mainly discussed: 1) grid convergence verification study of the turbulence models using a two-dimensional bump case, 2) grid convergence studies for Spalart-Allmaras and shear stress transport turbulence models using UPACS, 3) change of grid convergence and predicted flow fields with and without a nonlinear quadratic constitutive relation model for Spalart-Allmaras and shear stress transport turbulence models using UPACS including evaluation at higher angles of attack, and 4) comparison studies using different solvers UPACS and TAS on different grid systems with and without the quadratic constitutive relation model for the Spalart-Allmaras model.

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