Thunderhead Engineering Forum

Public Forum => PyroSim => Topic started by: ankit171032 on December 25, 2018, 01:54:44 pm

Title: Burn away and surface thickness
Post by: ankit171032 on December 25, 2018, 01:54:44 pm
I am trying to model burn away case and from manual I understood that :

1. The thickness of the OBST is not relevant to the 1- D heat transfer calculation and the thickness in the SURF line is used, however for burn away the OBST thickness matters (burn away time was changing in sample cases).

2. Does the thickness of the OBST have to be the actual thickness (in my case it is in mm), and my mesh has to been fine enough to model such a thickness? 

3. Can we keep obstruction thickness smaller than the mesh cell size and still that obstruction will be captured for both heat and flow calculations ?

 4. If an obstruction thickness is smaller than the mesh cell size , will burn_away work in this case?

Please correct me where I am wrong.
Thanks