Hypnotoad: enable 'Detailed settings' for nonorthogonal grids #1636
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Add a button to the 'Detailed settings' popup to generate a non-orthogonal grid. Allows more control of settings for non-orthogonal grid generation.
The radial direction of the nonorthogonal grid is calculated by taking a weighted average of the two vectors defining the directions of the ends of the grid section and the vector orthogonal to the flux surface. The weight of each end vector reduces as a power of the fraction of the poloidal index-space distance remaining in the grid. The new setting allows this power to be changed, so that the grid approaches orthogonal faster or slower.
Include summary of changes in next from last 6 pull requests involving Hypnotoad.
bendudson
approved these changes
Mar 11, 2019
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Adds a button to the 'Detailed settings' dialog to enable generation of nonorthogonal grids with detailed settings.
Also adds a new field to detailed settings to adjust the exponent controlling the decay length of the weight of the vector at X-point or wall that defines the non-orthogonal direction of the grid. I had some TORPEX cases where the radial grid lines could cross when the divertor leg is rather short, this setting gives some flexibility to try and avoid this if it happens.