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(in color) Processing of data from the DPD simulation of unsteady flow in a pipe: accuracy. The streamwise velocity is computed from atomistic data using the WPOD method. The time window over which the data is processed is kept constant. Black solid curve - each snapshot is computed over 100 time steps, number of POD modes is 40. Red dot-dash curve - each snapshot is computed over 200 time steps, number of POD modes is 20.
