異常圧力低下をともなう管水路の流れ

概要

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When the velocity of a liquid in a pipe is rapidly decreased at a point, for example, behind a rapidly-closing valve or a pump following power failure, the pressure at this point may drop to the vapor pressure of the liquid, thus causing the formation of a vapor cavity. In many cases, this cavity will collapse generating waves of high pressure propagating through the pipe. In this report, the characteristic method may be used to calculate vapor-pressure occurences and the resulting entrapped gas bubble and column separation.
山梨大学の論文