how to save uds' data in each time-step ?
my problem is: in DPM model, I set a user define scalar to grasp the relative velocity between flow and particles, then I would like to compute a integration with all the relative velocity of the previous time steps. with DEFINE_DPM_UPDATE, I can only get the present time step's value and cannot use pre-time step and the other time-step's value.I try to use arrey to store them, but not success. any help will be approprivate! Xiaodong
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