[BUG] mass is not accounted in computation of bulk flow velocity #170
Description
The output of "V" field is mass-dependent. For example, if particles have mass 20 and propagate with the same speed v, the outputted value would be V/20.
It is caused by double computation of FldsID::V in ParticleMoments_kernel: in line 229 of src/kernels/particle_moments.hpp and in line 290. The first computation does take mass, and the second one doesn't. After this, the computed fields are normalized by density in v=src/framework/domain/output.cpp line 603.
master version of the code