Cylindrical Coordinates

To use cylindrical coordinates, set coordinateSystem = Cylindrical in the Grid block. In the case of a cylindrical grid, expressions that normally call for x, y coordinates (see ParticleSource blocks, STFunc blocks, etc.) instead refer to z, r respectively, however you should still use x and y in the actual expressions.

Example

# The cylindrical grid
<Grid globalGrid>
    kind=coordProdGrid
    coordinateSystem=Cylindrical
    includeCylAxis=1
    <CoordinateGrid dir0>
        sectionBreaks=[ZBGN ZEND]
        deltaAtBreaks=[DZ DZ]
    </CoordinateGrid>
    <CoordinateGrid dir1>
        sectionBreaks=[RBGN REND]
        deltaAtBreaks=[DR DR]
    </CoordinateGrid>
</Grid>

Also see

• STFunc Block.

• ParticleSource.