| 1. | A finite difference scheme for two - phase incompressible flow in porous media on grids with local refinement in time
多孔介质中两相不可压缩流体的时间局部网格加密有限差分格式 |
| 2. | A finite difference scheme for miscible displacement flow in porous media on grids with local refinement in time and space
多孔介质中混溶驱动问题的时空局部网格加密有限差分格式 |
| 3. | A finite difference scheme for two - dimensional miscible displacement flow in porous media on grids with local refinement in time and space
多孔介质中二维混溶驱动问题在时空局部加密复合网格上的有限差分格式 |
| 4. | However this local refinement reduces the allowable time step very small which is determined by a global cfl time step for the explicit time discrtizations typically employed
然而，这种局部细的网格往往导致要选取相当小的时间步长。对于实施典型的显式时间离散，这个时间步长取决于一个整体的cfl条件。 |
| 5. | The hybrid optimization approach for blade aerodynamic design optimization consists of four key steps : design of experiments ( doe ) study for design variables , genetic algorithm ( ga ) for global exploration , response surface model ( rsm ) for approximation , iteration of sequential quadratic programming ( sqp ) and rsm for local refinement
该组合优化方法分为4个阶段：对变量进行试验设计（ doe ）分析、遗传算法（ ga ）全局搜索、响应面（ rsm ）近似建模，以及rsm和序列二次规划（ sqp ）相结合的局部寻优。 |
| 6. | Using the program two and three - dimensional numerical simulation of wind flow around single or multiple buildings can be achieved and the detailed flow condition including wind velocities , pressures and time - average characteristics of turbulence can be obtained . in order to attain the required accuracy efficiently multi - layer local refinements can be carried out based on the initial division grid
程序采用fortran语言编制，可实现二维和三维单体及群体建筑的绕流风场的模拟计算，获得建筑绕流风速、表面风压及湍流平均特性等数据；可通过对初始网格实施多层次的网格局部加密，以使风场解达到最终的精度要求。 |
