I tried other ways like 'raise number of iteration', 'use more fine mesh'. But it have same error message and when I use more fine mesh, it's simulation time is tooo long (more than 12hr).
======= boundary condition====== - stationary - Laminar Flow and Heat Transfer(solids and fluids) - I checked 'include gravity' of Laminar flow settings - open boundary: upside and downside of fluid block ===========================
I think it is really simple shape but it's too hard to me.... Also, any insight about this simulation and error will be very helpful.
Thank you for your help.
Nayeong Gi