AG
Ansys Employee
  1. Details of solar load (Fair Weather Conditions) as you are pointing in Table, is printed to fluent console or trn file whenever Solar Load Updates. By default it is set to 10 by Update Parameter "Time Steps per Solar Load Update=10". If you wish you can change it to 1 to get these details per timestep as you mentioned.
  2. In second part of your question, its not clear which images you are referring to. Check details on S2S and DO model and verify if you are using correct boundary conditions to expect variation in results. DO model is used when you have a participating media or transperent solids. So check your material properties or boundary conditions to further expect variation in results with these models.
  3. In last part where you are refering 0 heat flux on wall. I think you dont have any other heat source or higher temperature wall in your domain. Solar load is the one and only source of energy in your domain and when you switch it OFF, you are observing almost 0 flux. 

Thanks.