Flow solver with source terms

CarlosLozano · August 30, 2023, 04:09

Hi,
I would like to run the flow solver with a user-defined, non-vanishing source term. For example: solve flow around an airfoil with the condition that the x-momentum conservation equation, say, is zero everywhere except at a certain (user-specified) point where its value is, say, 10^-4. Is there a simple way to do that without having to actually get into the code?

bigfootedrockmidget · September 1, 2023, 03:41

You have to go into the code at this moment, there is no way to do this in either the config file or with the python wrapper (I think).
But most of the source term definition is in one file, src/numerics/flow_sources.cpp
You can have a look at the gravity source term to get an idea of what to do.

CarlosLozano · September 1, 2023, 04:13

Quote:

Originally Posted by bigfootedrockmidget

You have to go into the code at this moment, there is no way to do this in either the config file or with the python wrapper (I think).
But most of the source term definition is in one file, src/numerics/flow_sources.cpp
You can have a look at the gravity source term to get an idea of what to do.

OK, thanks a lot. I'll take a look and give it a try.

August 30, 2023, 04:09	Flow solver with source terms	#1
CarlosLozano New Member Join Date: Feb 2018 Posts: 29 Rep Power: 9	Hi, I would like to run the flow solver with a user-defined, non-vanishing source term. For example: solve flow around an airfoil with the condition that the x-momentum conservation equation, say, is zero everywhere except at a certain (user-specified) point where its value is, say, 10^-4. Is there a simple way to do that without having to actually get into the code?

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September 1, 2023, 03:41		#2
bigfootedrockmidget Senior Member bigfoot Join Date: Dec 2011 Location: Netherlands Posts: 747 Rep Power: 21	You have to go into the code at this moment, there is no way to do this in either the config file or with the python wrapper (I think). But most of the source term definition is in one file, src/numerics/flow_sources.cpp You can have a look at the gravity source term to get an idea of what to do.