柱坐标系NS方程表达式 柱坐标系中的NS方程表达式为: \frac{1}{r}\frac{\partial}{\partial r}(r\frac{\partial u}{\partial r})+\frac{1}{r^2}\frac{\partial^2 u}{\partial \theta^2} + \frac{\partial^2 u}{\partial z^2}=-\frac{1}{\rho}\frac{\partial p}{\partial z}+\nu(\...