关于cfd，c语言实现cfd方法模拟压力温度等变化。-With regard to cfd, c language implementation cfd simulation of pressure and temperature changes.

直角坐标中二维稳态无内热源的导热,四个边界上的温度已知，T=x+y+xy求区域中的温度分布。 -Steady two-dimensional Cartesian coordinates of the thermal conductivity without internal heat source, the temperature of the four known on the boundary, T = x+ y+ xy find the temperature distribution