For the purpose of green building design, I am trying to model air flow, heat exchange, humidity changes and solar radiation, between different models I chose Design builder and Energy plus but for CFD simulation of air flow, there are always inaccuracies in there. Which one do you suggest, emphasizing more accurate CFD modeling of air flow inside and outside the buildings?
Hello
I think that Fluent is the best CFD software for simulating flow patterns but if you have multiphysics phenomena I think Comsol is better.
Thanks, The flow is literally turbulent in and out side the building. The question is that I need to be able to simulate the turbulent airflow inside and its connection with outside for a complex geometry of my building which makes in very complicated using such robust model like Fluent even though have great ability using different turbulent model. Is there any experimental work on air flow to I could even calibrate my model?
Fluent CFD code will be best suited for your problem. As in CFD numerous turbulent modelling schemes are available like K-epsilon (which is widely followed). In my opinion you need to perform the CFD analysis with the other turbulent schemes and perform the grid independence test in order to have a accurate results. You should first try at a small scale model.
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