...采用数学方法构造一种坐标系,其各坐标轴恰好与被计算物体的边界相适应,这种坐标系就称为贴体坐标系(body-fitted coordinates)。直角坐标系是矩形区域的贴体坐标系,极坐标是环扇形区域的贴体坐标系。
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在贴体坐标系中,采用有限差分法求解流动方程和叶片方程;
The flow equations are solved using finite difference technique. Using body-fitted curvilinear coordinate system treated the boundary conditions.
在此基础上建立了正交曲线贴体坐标系下的平面二维全沙数学模型。
A plane 2-d full load mathematical model is established under the body-fitted coordinate system based on staggered grid.
在水斗三维贴体坐标系中,还推导了流体粒子在水斗曲面上的运动控制方程。
The governing equation of motion for fluid particles moving on bucket was deduced on BFC at the same time.
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