Asymptotic boundary conditions for computing the position of laminar-turbulent transition by the eN-method
A.V. Boiko1,2, K.V. Demyanko1,3, Yu.M. Nechepurenko1,3
1Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
2Tyumen State University, Tyumen, Russia
3Marchuk Institute of Numerical Mathematics RAS, Moscow, Russia
Keywords: пограничный слой, ламинарно-турбулентный переход, e-метод, гидродинамическая устойчивость, уравнения распространения малых возмущений, локально-параллельный подход, асимптотические граничные условия, boundary layer, laminar-turbulent transition, e-method, hydrodynamic stability, governing equations for small disturbances, local-parallel approach, asymptotic boundary conditions
Abstract
The work is devoted to the use of asymptotic boundary conditions for engineering prediction of the laminar-turbulent transition position in hydrodynamic flows by the eN -method. It is shown that the asymptotic boundary conditions can significantly reduce the total computational cost.
|
