Unstady boundary condition

rzamorano · November 21, 2013, 08:18

Hi, i'm really new on this, and i only know how to modeling steady state. Now i have to modeling a inlet condition that varies with the time (i have diferents flows [L3/T] for each time in a table). How can i do that? please i'm very lost with this

smhosseini · November 22, 2013, 05:24

Hi Rodrigo,
Could you explain more about your problem?
Do you have any equation for your inlet flow?
If your answer is yes you can calculate the flow inlet each time in your code.
If you're using a software for simulation, It depends on your software.

FMDenaro · November 22, 2013, 06:38

is the inflow laminar? what about the inlet geometry?

November 21, 2013, 08:18	Unstady boundary condition	#1
rzamorano New Member Rodrigo Join Date: Oct 2013 Posts: 4 Rep Power: 12	Hi, i'm really new on this, and i only know how to modeling steady state. Now i have to modeling a inlet condition that varies with the time (i have diferents flows [L3/T] for each time in a table). How can i do that? please i'm very lost with this

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November 22, 2013, 05:24		#2
smhosseini Member Mohsen Join Date: Jul 2012 Posts: 49 Rep Power: 13	Hi Rodrigo, Could you explain more about your problem? Do you have any equation for your inlet flow? If your answer is yes you can calculate the flow inlet each time in your code. If you're using a software for simulation, It depends on your software.

November 22, 2013, 06:38		#3
FMDenaro Senior Member Filippo Maria Denaro Join Date: Jul 2010 Posts: 6,768 Rep Power: 71	is the inflow laminar? what about the inlet geometry?