IGTC-38 Internal Viscous Flow Computations by Zonal Method(Session A-12 COMPUTATIONAL AERODYNAMICS III)

スポンサーリンク

概要

• 論文の詳細を見る

• To simplify grid generations for internal flow computations is one of the most important items to study in order to use the CFD as an engineering tool for the design and analysis of turbomachines. In this paper, we describe a practical computational technique which is a hybrid method between a finite-difference method (FDM) and a finite-element method (FEM). An implicit FDM is applied to viscous flow regions near bodies, and the remaining region is solved using an explicit FEM. With this zonal approach, the computational efficiency of the FDM is retained and geometric flexibility is given by the FEM. Flowfields of a 2-D turbine cascade and a 3-D nacelle/inlet have been numerically simulated by the method in order to validate its capabilities. In the cascade computations, accuracy has been examined by comparing with experimental data. Particular attention has been given to investigate the ability of the Baldwin-Lomax turbulent model to predict the boundary layer transition location.

• 公益社団法人日本ガスタービン学会の論文

著者

• Nakahashi K.

  National Aerospace Laboratory

• Kikuchi K.

  National Aerospace Laboratory

• Tamura A.

  National Aerospace Laboratory

関連論文

• IGTC-38 Internal Viscous Flow Computations by Zonal Method(Session A-12 COMPUTATIONAL AERODYNAMICS III)
• IGTC-43 Numerical Analysis of Three Dimensional Cascade Flow by Solving Navier-Stokes Equations(Session A-13 COMPUTATIONAL AERODYNAMICS IV)

スポンサーリンク