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Unexpected behaviour of "FresnelLaser" reflection model

Summary

When running "icoReactingMultiphaseInterFoam" with the "laserDTRM" radiation model and "FresnelLaser" as reflection model, the reflection of the laser beam does not seem to be considered at all. See also https://www.cfd-online.com/Forums/openfoam-solving/232725-laser-simulation-icoreactingmultiphaseinterfoam-2.html#31 ff.

Steps to reproduce / Example case

Run the test case in "Reflection_at_interface.zip" Reflection_at_interface.zip

What is the current bug behaviour?

Emitted rays / particles are not reflected at phase interfaces.

What is the expected correct behavior?

Emitted rays / particles are reflected at phase interfaces according to Fresnel's Law.

Relevant logs and/or images

Screenshot_PV

Environment information

  • OpenFOAM version : 2106
  • Operating system : Ubuntu on Windows 10 / WSL2

Possible fixes