Expansion tube test time predictions
作者： Christopher M. Gourlay
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摘要: The interaction of an interface between two gases and strong expansion is investigated the effect on flow in tube examined. Two mechanisms for unsteady Pitot-pressure fluctuations found test section are proposed. first mechanism depends Rayleigh-Taylor instability driver-test gas presence a expansion. second reflection from interface. Predictions compare favorably with experimental results. theory expected to be independent absolute values initial filling pressures.
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