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[EnergyPlus_Support] Can someone advice me the trick in simulating stack effect.



Hello fellows.
 
When it comes to simulate buoyancy flow where the well-mixed assumption can be errorneous, how can I overcome ths problem in EnergyPlus?

When I wanna know just a vertical temperature gradient of a certain zone, I can apply IRT material of EnergyPlus. 
But as far as I know it can't be applied to know the airflow by the temperature stratification. right? 


How about this trick?
Divide vertical zone by a number of horizontal holes.
Discharge coefficient of each hole should be 1, I think.
By doing so, can I overcome it to some degree? 

Thanks in advance. 
Best regards. 




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