Roof Drainage

Funkstu42 · June 28, 2019, 21:12

Can anyone help with doing a simulation for rainfall on a roof system. Rainfall intensity to be 187mm/hr

https://www.dropbox.com/s/gmhzv2qilx...Model.STL?dl=0

Regards
Stuart

thunde47 · July 29, 2019, 14:58

You can put a mass momentum source above the terrain and define both volume flow rate (Q) and velocity (v)

Q=vAF

F is the fluid fraction. By defining both A and v you force f to be reduced, thus imitating real rainfall. You will also have to define A which will depend on your depth/hr intensity.

June 28, 2019, 21:12	Roof Drainage	#1
Funkstu42 New Member Victoria Join Date: Jun 2019 Posts: 1 Rep Power: 0	Can anyone help with doing a simulation for rainfall on a roof system. Rainfall intensity to be 187mm/hr https://www.dropbox.com/s/gmhzv2qilx...Model.STL?dl=0 Regards Stuart

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July 29, 2019, 14:58		#2
thunde47 Senior Member thunde47 Join Date: Dec 2015 Location: India, USA Posts: 133 Blog Entries: 1 Rep Power: 11	You can put a mass momentum source above the terrain and define both volume flow rate (Q) and velocity (v) Q=vAF F is the fluid fraction. By defining both A and v you force f to be reduced, thus imitating real rainfall. You will also have to define A which will depend on your depth/hr intensity.