補正項を用いたC-CUP法の一般曲線座標系への拡張

概要

論文の詳細を見る
The C-CUP method suitable for both compressible and incompressible fluids is extended to the general curvilinear coordinate system. In this paper, a staggered square grid in the transformed space is used, and the numerical viscosity, which does not depend on the change of metrics due to the rotation of the grid, is proposed. The equation of pressure is solved by the iteration method. As numerical examples, a shock-tube problem, a two-fluid flow and a flow field around a two-dimensional wing were calculated. Numerical results of the shock-tube problem show that the proposed numerical viscosity for the curvilinear coordinate system is effective to stabilize the solution. For the viscous two-fluid flow, the sharp interface between the two fluids is traced by using the density function.
社団法人日本機械学会の論文
1995-03-25