a question about relaxation control
recently I did some attempt on adjusting the relaxation factor in PHOENICS, seeing what will happen.
before doing this i was convinced that the relaxation should be very small for non-isothermal problems, but when i tried to make the relaxation bigger and bigger, i found that the divergence didn't happen ( however, nor did the convergence).
my question is, is the relaxation factor the bigger the better?
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