- #1
Wisam
- 8
- 0
Let's say we have r=R( theta, phi, t) on the surface of the particle and need to find the normal vector in Spherical Coordinate system. We know that, the unit vector =grad(r-R( theta, phi, t)) / |grad((r-R( theta, phi, t))|
where grad is Spherical gradient operator in term of e_r, e_\theta, e_\phi.
Can you please help me to calculate the normal velocity to the surface in Spherical Coordinate system.
Thank for your help.
where grad is Spherical gradient operator in term of e_r, e_\theta, e_\phi.
Can you please help me to calculate the normal velocity to the surface in Spherical Coordinate system.
Thank for your help.