Interpolation of vectors in OpenFOAM version 10

Pranav_896 · September 5, 2023, 03:26

I want to do interpolation of vectors in OpenFOAM version 10. Please help me through this.
A=B+C where A, B and C are vectors.
First I want to interpolate C from cell centre to cell face and then after calculation of B on the cell face and getting the value of A on the cell face. I further want to do interpolation of A from cell face to cell centre. I want to execute this process.
What commands shall I use?

Tobermory · September 5, 2023, 06:19

Take a look at some of the solver files - they all involve interpolation of values (scalars and vectors) from cell centre to face centre, and then back again ... the command is surprisingly called interpolate (

). For example, in EEqn.H of bouyantPimpleFoam:

Code:

fvc::absolute(phi/fvc::interpolate(rho), U)

You'll need to do some digging to find the right one for you, but check out the Doxygen pages.

September 5, 2023, 03:26	Interpolation of vectors in OpenFOAM version 10	#1
Pranav_896 New Member Pranav Join Date: Sep 2023 Posts: 1 Rep Power: 0	I want to do interpolation of vectors in OpenFOAM version 10. Please help me through this. A=B+C where A, B and C are vectors. First I want to interpolate C from cell centre to cell face and then after calculation of B on the cell face and getting the value of A on the cell face. I further want to do interpolation of A from cell face to cell centre. I want to execute this process. What commands shall I use?

September 5, 2023, 06:19		#2
Tobermory Senior Member Join Date: Apr 2020 Location: UK Posts: 736 Rep Power: 14	Take a look at some of the solver files - they all involve interpolation of values (scalars and vectors) from cell centre to face centre, and then back again ... the command is surprisingly called interpolate (). For example, in EEqn.H of bouyantPimpleFoam: Code: fvc::absolute(phi/fvc::interpolate(rho), U) You'll need to do some digging to find the right one for you, but check out the Doxygen pages.

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