I would appreciate any comments on the following problem. I need to calculate mean fields (e.g. pressure, velocity and vorticity), for which I activate Trn Stats tab in CFX-Pre. However, what I get is not as expected; the calculated Trnavg variables differ from one time step to another, as opposed to being independent of simulation time. I'm really confused about what these Trnavg (Arithmetic average) variables actually represent and how the solver calculates them.

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