d2dt2 on a patch

ngbidi · January 12, 2023, 09:06

Hi Foamers,

is there a way to get the second time derivative on a patch? I would like to calculate the second time derivative for the temperature. So far, I know how to calculate the second time derivative for the whole field with fvm::d2dt2. But I get a fvMatrix and I don't know how to continue with that.

Thanks in advance.

ngbidi · January 15, 2023, 07:53

I found out the answer myself. I only need to use fvc::d2dt2 instead of fvm::d2dt2 and then I will get a volScalarField from which I can take the boundary values.

January 12, 2023, 09:06	d2dt2 on a patch	#1
ngbidi New Member Join Date: Mar 2022 Posts: 7 Rep Power: 4	Hi Foamers, is there a way to get the second time derivative on a patch? I would like to calculate the second time derivative for the temperature. So far, I know how to calculate the second time derivative for the whole field with fvm::d2dt2. But I get a fvMatrix and I don't know how to continue with that. Thanks in advance.

January 15, 2023, 07:53	solved	#2
ngbidi New Member Join Date: Mar 2022 Posts: 7 Rep Power: 4	I found out the answer myself. I only need to use fvc::d2dt2 instead of fvm::d2dt2 and then I will get a volScalarField from which I can take the boundary values.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[OLAFLOW] The OLAFLOW Thread	Phicau	OpenFOAM Community Contributions	459	September 12, 2024 12:47
y+ and u+ values with low-Re RANS turbulence models: utility + testcase	florian_krause	OpenFOAM	114	August 23, 2023 06:37
steadyUniversalMRFFoam Tutorial fails in MixingPlane	HenrikJohansson	OpenFOAM Bugs	0	February 14, 2019 05:48
Near wall treatment in k-omega SST	Arnoldinho	OpenFOAM Running, Solving & CFD	38	March 8, 2017 14:48
[Gmsh] Import gmsh msh to Foam	adorean	OpenFOAM Meshing & Mesh Conversion	24	April 27, 2005 09:19