[Mohammad Jam]

Hi
is it possible to solve multi layer medium by laplacianFoam solver?

[bigphil]

Originally Posted by Mohammad Jam

Hi
is it possible to solve multi layer medium by laplacianFoam solver?

Do you mean where there are layers of material with different diffusivities?

If so, the answer is no for the default laplacianFoam but it is very easily modified to allow this. The diffusivity (called DT) in laplacianFoam.C is a dimensionedScalar (same value for every cell); you could change this to be a volScalarField that you read from the case: this would allow you to set a different DT for every cell; you could set layers using setFields.

You may need to be careful if there is a large discrete jump in DT across an interface, as the normal gradient would not be defined; however, the default method may be fine depending on what you are interested in.

Philip

[Mohammad Jam]

Any answer is welcome!

Regards,
Mohammad

[Mohammad Jam]

Originally Posted by bigphil

Do you mean where there are layers of material with different diffusivities?

If so, the answer is no for the default laplacianFoam but it is very easily modified to allow this. The diffusivity (called DT) in laplacianFoam.C is a dimensionedScalar (same value for every cell); you could change this to be a volScalarField that you read from the case: this would allow you to set a different DT for every cell; you could set layers using setFields.

You may need to be careful if there is a large discrete jump in DT across an interface, as the normal gradient would not be defined; however, the default method may be fine depending on what you are interested in.

Philip

Hi Phllip
thanks for your kind response,

How can i implement complex shape like closed curve ( NOT ordinary shape like circle ...) by setFields or funkySetFields? is it possible to do?
i want to simulate heat transfer in human eye as i attached its picture.

Regards,
Mohammad

[ahmmedshakil]

Hi Jam,
The convenient way for generating mesh for the mentioned structure can be Gambit or GridGen, and then transfer it to OpenFOAM format.

Cheers
shakil

[Mohammad Jam]

Originally Posted by ahmmedshakil

Hi Jam,
The convenient way for generating mesh for the mentioned structure can be Gambit or GridGen, and then transfer it to OpenFOAM format.

Cheers
shakil

Hi Mohammad

you are right, But every layer of mentioned structure has different value properties e.g. thermal conductivity and i want to implement these properties by funkySetField.

any idea?

Regards,
jam