1. Using the expression for the gradient in polar coordinates (Appendix A), find the gradient of ψ(r,θ) when
![470_Equ 1.jpg](https://secure.tutorsglobe.com/CMSImages/470_Equ%201.jpg)
Where is the gradient maximum? The terms A and a are constant.
2. Given the following expression for the pressure field where x, y, and z are space coordinates, t is time, and P0, ρ, V∞, and L are constants, find the pressure gradient
![1174_Equ 2.jpg](https://secure.tutorsglobe.com/CMSImages/1174_Equ 2.jpg)