Dear @Deyi.Fu,
So, did you finally settle on a GridHeight/GridWidth in TurbSim that works for you in combination with the lowest value of TwrElev in AeroDyn? Which values did you settle on?
The error regarding “no valid value of phi” has been discussed many times on this forum, e.g.: Process stopped - #3 by Leire.Gandiaga.
However, the error in your case is proceeded by warning about “large blade deflection”, which suggests something else is wrong with your simulation set up. This warning has also been discussed many times in this forum.
Best regards,