Can you solve UDS on a flow field, while not solving the flow field?

schwaral · October 7, 2020, 12:12

Hi,
I want to solve an UDS in my domain. But I do not want to solve the flow field. I want to initialise the flow field for every timestep and then only calculate the UDS for one timestep (not NS-Eq).

Is this even possible or is the solving of an UDS automatically coupled to multiple Iterations for solving u,v,w components.

I want to do so, because my UDS has no influence on my flow field components u,v,w and it is very time consuming to calculate this behavior coupled.

best regards, alex

AlexanderZ · October 7, 2020, 23:07

Fluent Gui -> Solution -> Controls -> Equations -> switch off equations, you don't need (energy and flow for your case)

schwaral · October 12, 2020, 14:44

that was too easy

Thanks for that!

October 7, 2020, 12:12	Can you solve UDS on a flow field, while not solving the flow field?	#1
schwaral Member Deutschland Join Date: Jun 2020 Location: https://t.me/pump_upp Posts: 43 Rep Power: 6	Hi, I want to solve an UDS in my domain. But I do not want to solve the flow field. I want to initialise the flow field for every timestep and then only calculate the UDS for one timestep (not NS-Eq). Is this even possible or is the solving of an UDS automatically coupled to multiple Iterations for solving u,v,w components. I want to do so, because my UDS has no influence on my flow field components u,v,w and it is very time consuming to calculate this behavior coupled. best regards, alex

October 7, 2020, 23:07		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	Fluent Gui -> Solution -> Controls -> Equations -> switch off equations, you don't need (energy and flow for your case) rpx likes this. __________________ best regards ****************************** press LIKE if this message was helpful

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
problem with Min/max rho	tH3f0rC3	OpenFOAM	8	July 31, 2019 10:48
simpleFoam error - "Floating point exception"	mbcx4jc2	OpenFOAM Running, Solving & CFD	12	August 4, 2015 03:20
Cannot run the code properly: very large time step continuity error	crst15	OpenFOAM Running, Solving & CFD	9	December 14, 2014 19:17
pimpleFoam: turbulence->correct(); is not executed when using residualControl	hfs	OpenFOAM Running, Solving & CFD	3	October 29, 2013 09:35
pisoFoam with k-epsilon turb blows up - Some questions	Heroic	OpenFOAM Running, Solving & CFD	26	December 17, 2012 04:34

October 12, 2020, 14:44		#3
schwaral Member Deutschland Join Date: Jun 2020 Location: https://t.me/pump_upp Posts: 43 Rep Power: 6	that was too easy Thanks for that!