Determination of the laminar-turbulent transition location in numerical simulations of subsonic and transonic flows past a flat plate
A.V. Boiko1,2, K.V. Demyanko1,3, A.A. Inozemtsev4, S.V. Kirilovskiy1, Yu.M. Nechepurenko1,3, A.P. Paduchev4, T.V. Poplavskaya1
1Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosbirsk, Russia
2University of Tyumen, Tyumen, Russia
3Marchuk Institute of Numerical Mathematics RAS, Moscow, Russia
4UEC Aviadvigatel, Perm, Russia
Keywords: numerical simulation, subsonic and transonic flows, laminar-turbulent flow, laminar-turbulent transition, LTT module
Abstract
The study is aimed at determining the position of the laminar-turbulent transition in subsonic and transonic two-dimensional boundary layers with the use of a novel software package LOTRAN 2.0 developed by the authors. The package is based on the eN -method and employs numerical data of numerical simulations of the laminar flow performed by standard gas-dynamic software systems based on the Reynolds-averaged Navier-Stokes equations. As an example, the flow past a flat plate is considered. The good agreement of the computed and experimental data on the laminar-turbulent transition location is demonstrated. New data on the laminar-turbulent transition in the boundary layer on a flat plate for transonic flow regimes are obtained.
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