espressomd/espresso — pull request #96 by rempferg (2013-06-14 12:38:20+00:00)
Title: Minor change to GPU LB velocity field output

Stefan changed the implementation of the bounce-back boundaries. Some people are confused by the fact that it now outputs unphysical velocities in the boundaries (that do not interact with the fluid outside).

This commit changes the output routine so it sets the velocities of boundary nodes to zero before outputting them. None of the internal calculations have been modified.