Problem model.cylinder_from_points

User Support
1

Hi guys,

Here is a problem with the model building API: Openmc. model.cylinder_from_points. I’m using this function to build a sample geometry model like a cylinder whose axis on points (0, 0, 0) and (2,2,0) with a radius of 1cm. This simple model will be extended to be a bowing fuel rod later.

The cylinder surface was created by this API, and it is used to define a cell. However, geometry.xml does not express this surface after running. The universe_plotter can not plot this surface when the cell has filled into the root universe either.

I suspect it is because the cylindrical surface is not correctly defined. But I’m not sure how to fix this problem. The working notebook has been attached here.
qudric_surface.py (1.4 KB)

Please contact me if you know how to use this function correctly. Many thanks.

Best wishes,
Yiming

2

Hi @YimingZ ;

I think that you should take look on the following post:

you my also contact the concerned person (@shabudarda) because it seems that he succeeded to use such that function and master it very well.

Gook luck

3

@YimingZ The problem in your script is the following line:

root.add_cell = (qudric1_cell)

This line is setting the attribute add_cell to the variable qudric1_cell. You should be calling add_cell:

root.add_cell(qudric1_cell)
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