Hi, I intend to check some theoretical heat transfer concepts about external forced convenction and to get a basic knowhow of thermal cases setup in SimScale, using a test body (inteds to be a kind of “simplified” vehicle body)
First I tried and got some more ore less “sensible” results of external incompressible flow simulation in steady state (k-e).
I jump into using the “natural convective heat transfer” steady-state case (k-e model), and a BC set as far as I currently understand. I used as referece the BC setup of the HVAC car interior in the library.
Inlet frontal face: fixed speed 1m/s and Tª (5ºC)
Outlet (rear) face: custom, P=0, k-e inletoutlet, all rest gradient=0
Side faces: custom, speed=slip, all rest gradient=0
Body walls: noslip with wall functions, fixed Tª (15ºC)
Numerics: same config as car HVAC example.
Model: default values as car HVAC example.
In about 4minutes ends with error “Maximum number of iterations exceeded.” No convergece plot is done.
Obviously something basic is wrong and I would like to find out before trying again. I am using k-e as I understood it is a more stable model to get convergence.
Thanks for commenting