Surface assembly__pickedsurf15 has facets that are not oriented properly with respect to neigh boring facets. Use available post processor to visualize surface normals.
Lawrence, "Spectre: A Computational Environment for Managing Total Uncertainty Quantification of CFD Studies," AIAA AIAA 2019-2221. 2019. E. K. Friedman-Hill, E. L. Hoffman, M. J. Gibson, R. L.
The region refers to the single cell in this model. region = (myBeam.cells,) myBeam.SectionAssignment(region=region,sectionName='beamSection') #----------------------------- import assembly # Create a