Fix R < r torus intersection bug #2589
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In the case when R < r the inner "imaginary" surfaces created an additional source of scattering close to the center of the torus. This error occurred due to the lack of a check in the solution of the torus equation. If we describe the equation in more detail, we obtain the following: . We see that the left part should obviously be less than or equal to zero. This check was missing in the code of surface.cpp file and was added in lines 972-978.
paulromano
requested changes
Jul 14, 2023
Thanks! It is a better way to perform this check Co-authored-by: Paul Romano <paul.k.romano@gmail.com>
paulromano
reviewed
Jul 14, 2023
paulromano
approved these changes
Jul 14, 2023
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Description
In the case when R < r the inner "imaginary" surfaces created an additional source of scattering close to the center of the torus. This error occurred due to the lack of a check in the solution of the torus equation. If we describe the equation in more detail, we obtain the following:
We see that the left part should obviously be greater than or equal to zero.
As a result of OpenMC with these geometry parameters (torus_test_xml.tar.gz), there is an anomaly in the form of surfaces inside, which in fact should not be:
This check was missing in the code of surface.cpp file and was added in lines 974-978. After fixing this error, the torus image looks correct:
This is probably not a common problem, but I encountered it when calculating heat in one of the projects, where there was an anomalous surface where it should not be.
Fixes # (issue)
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