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A numerical scheme known as the Random-Choice Method was applied to analyze the pulsating flow in a pipe with and without a nozzle. Good quantative agreement between shock locations obtained experimentally and numerically was found. Furthermore, the pressure histories of flow upstream of the nozzle show good quantitative agreement.

The pulsating pipe flow with a diffuser was studied numerically and experimentally. Comparing the numerical results using a Random-Choice Method with those of experiments, a good agreement was found regarding pressure histories at each station along pipes, and in particular, as far as the locations of shock waves are concerned the agreement was excellent.