[snoopyMP]

Hi guys,

I want to implement a gaussian filter for my research project in OpenFoam 4.0. I have a volScalarField and want to execute a gaussian filter on it. The sigma-range should be of 3 or 4 element-sizes.

Did anyone ever implemented this? My problem is that the simple-filter use only one element-size range and do not include the neighbourhood.

It would be greate, if anyone can help me.

Best regards,
Martin

[syavash]

Originally Posted by snoopyMP

Hi guys,

I want to implement a gaussian filter for my research project in OpenFoam 4.0. I have a volScalarField and want to execute a gaussian filter on it. The sigma-range should be of 3 or 4 element-sizes.

Did anyone ever implemented this? My problem is that the simple-filter use only one element-size range and do not include the neighbourhood.

It would be greate, if anyone can help me.

Best regards,
Martin

Hi Martin,

I suppose that simple filter uses two adjacent neighbour cells, is that otherwise??

Syavash

[Mahdi2010]

Originally Posted by syavash

Hi Martin,

I suppose that simple filter uses two adjacent neighbour cells, is that otherwise??

Syavash

I would also assume this is the case, but looking at the source code, no adjacent cell is seen. Is it
true?


tmp<volScalarField> filteredField = fvc::surfaceSum
(
mesh().magSf()*fvc::interpolate(unFilteredField)
)/fvc::surfaceSum(mesh().magSf());

unFilteredField.clear();