[flyingd]

Originally Posted by pulgarcito

Hi to all,

I dont understand your interesting in simulate solid regions. Just simulate only fluid domain and represent human bodies as a wall using heat flux (total or convective deppending if you plan to simulate radiation or not). In my experience, displacement ventilation simulation works great with boussinesq aproximation for buoyancy. You will encounter more numerical stability using boussinesq rather than real gas state equation.

perhapls helps you to run calculations in transient mode, reducing g value to add an extra "relaxation" for momentum equations. Then increase g value untill the desired conditions.

Sorry for my english

Regards

I meet the same error,but if there is no free surface the model is ok.
why: