which model is suitable for natural ventilation? -- CFD Online Discussion Forums

December 22, 2005, 14:08	which model is suitable for natural ventilation?	#1
HVAC Guest Posts: n/a	Hello everyone I am using fluent to simulate the ventilation in room. If the indoor air is mainly driven by buoyancy, which model I should use? I have used standard k-e and RNG model. But it never gets to converge. I monitored the average temperature of the outlet. It began to fluctuate after about 800 steps. My boundary condition is: velocity-inlet, outflow, and constant heat flux wall. Could anyone give me some help? Thanks will

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