An example of using sampledSurfaces to export patches from OpenFOAM

sample

// OpenFOAM v2112 function using sampledSurfaces for patch/surface export
// Includes:
//  - multiple file formats;
//  - point-data export;
//  - near-wall interpolation;
//
// Can be tested on motorBike tutorial data, using:
// postProcess -func sample -latestTime

sample
{
    type        surfaces;
    libs        (sampling);

    fields          ( p U );
    writeControl    writeTime;

    // Set the default export format   
    surfaceFormat   vtp;

    // Tweak the cell-point interpolation to give near-wall values,
    // especially useful for near-wall velocities.
    interpolationScheme cellPointWallModified;

    
    formatOptions
    {
    	// Set VTP write format to binary to reduce on-disk size
        vtp
    	{
    		format binary;
    	}
        obj
        {
            // compression     true; // uncomment to write gzipped OBJ files
        }
    }

    surfaces
    (
        // Export motorBikeGroup patches as binary VTP
        motorbike-surfs
        {
        	type        patch;
        	patches 	(motorBikeGroup);
        	// Export interpolated point-based data
        	interpolate true;
        }
        
        // Export motorBikeGroup patches in EnSight format
        motorbike-surfs
        {
        	type           patch;
        	patches        (motorBikeGroup);
        	// Override the default export format - use ascii Ensight
        	surfaceFormat  ensight;
        	// Export cell/face-based data
        	interpolate    false;
        }

        // Export motorBikeGroup patches in OBJ format
        motorbike-surfs
        {
            type            patch;
            patches         (motorBikeGroup);
            // Override the default export format - use OBJ (no fields exported)
            surfaceFormat   obj;
        }
        
    );
}


// ************************************************************************* //

Exporting patches with sampledSurfaces

An OpenFOAM v2112 function using sampledSurfaces for patch/surface export

Includes:

• multiple file formats;
• point-data export;
• near-wall interpolation;

Try it out on the motorBike tutorial data (working in OpenFOAM v2112 & v2106).

Save the file above to system/sample then run:

postProcess -func sample -latestTime