[ishan_ae]

I have a question regarding the value field that we see in different OF BC.

I understand that if we use a fixedValue BC then for that value field we need to give a fixed value of the quantity of interest such as for velocity.

In BC such as flowRateOutletVelocity and calculated, what does this value field correspond to ? Are these initial values for the patches where these values have been specified ?

I looked into the user guide and here as well but could not get a conclusive answer.

[geth03]

if you need detailed explanation you can check the description part of the header files. (nameOfFile.H)

here for example for flowRateOutletVelocity, you can see which information are needed and what they will do:

https://github.com/OpenFOAM/OpenFOAM...hVectorField.H

[ishan_ae]

Thanks for information. Unfortunately I cannot read C++. If I have to find information on a BC I usually use foamInfo or go to openfoam.cpp.org/v6 web page.

[geth03]

the description is not c++ code, please take a look.

[Yann]

Originally Posted by ishan_ae

I have a question regarding the value field that we see in different OF BC.

I understand that if we use a fixedValue BC then for that value field we need to give a fixed value of the quantity of interest such as for velocity.

In BC such as flowRateOutletVelocity and calculated, what does this value field correspond to ? Are these initial values for the patches where these values have been specified ?

I looked into the user guide and here as well but could not get a conclusive answer.

Hello Ishan,

This is a recurrent question and yes you can consider it as initial values.

Have a look at this post:
Understanding UniformFixedValue boundary condition

Cheers,
Yann

[ishan_ae]

geth03 the description is something I can get using foamInfo. Am I right ?

Yann, thank you for pointing it out.