贴体网格的生成与通用传输方程在贴体坐标区域中的变换

Generation of Body-Fitted Grids and Transformation of Universal Transportation Equation in Body-Fitted Coordinate Regions

该文推导了贴体坐标转换方程 ,通过离散方程生成了双辊薄带连铸熔池区域物理平面的贴体网格 ,同时采用修正源项的方法对网格在边界处的正交性进行了修正 ,将冶金传输过程中的通用传输方程从物理区域转变到计算区域中 ,并将物理区域中的边界条件向计算区域进行了一一对应转换 .

The body fitted coordinate (BFC) transformation equation is derived using the transformation equation, BFC grids of the molten pool area in twin roll strip casting process is generated. Orthogonality of the grids on the boundary is modified through adjusting source items. The universal equation in metallurgy transportation and the boundary conditions are transformed from physical domain to computational domain.