| 摘要: |
| 在非正交边界拟合曲线坐标系下，建立非交锚网格变量布置的水流计算 模式。采用逆变速度分量作为独立计算变量。为避免出现棋盘格式压力场物理上的非真实解，采用动量插 值方法计算交界面处的流速插值，运用压力 校正法（SLMPLE、SIMPLEC或 SIMPLER）求解离散方程，并对S型弯道水流运动 进行数值计算。 |
| 关键词: 非正交曲线坐标系 非交错网络 水流 数值计算 |
| DOI： |
| 分类号:TV131.3 |
| 基金项目: |
|
| Numerical modeling of flowin non-staggered curvilinear grids |
|
XIA Yun feng
|
| Abstract: |
| A 2 D depth averaged numerical model in boundary fitted coordinates for non staggered grids, taking contravariant velocity as an independent variable, is developed. The momentum interpolation method is used to calculate the interpolation at the interface to avoid the pressure oscillation in non staggered grids. The discretization equations are solved using pressure correction algorithms(SIMPLE, SIMPLEC or SIMPLER). Finally, the model is applied in numerical calculation of a S type meandering channel. |
| Key words: non orthogonal curvilinear coordinates,non staggered grids,momentum interpolation |
