SPHinXsys provides C++ APIs for engineering simulation and optimization. It aims at complex systems driven by fluid, structure, multi-body dynamics and beyond. The multi-physics library is based on a unique and unified computational framework by which strong coupling has been achieved for all involved physics.
https://github.com/Xiangyu-Hu/SPHinXsys/blob/e30134b0a4660cff93b23ff0d5657258655ee1d8/src/shared/particle_dynamics/fluid_dynamics/eulerian_fluid_dynamics/eulerian_fluid_integration.hpp#L151C1-L151C50
The should have not mass flux to the wall. @ZhentongWang This seems a bug.