Author(s): Sedat Sami; James Craddock; William Palmer; Glenn Harper; James Benson
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Keywords: No Keywords
Abstract: The hydraulics of multitank systems, where the main tank and the auxiliary or transfer tanks are lined in series and filled through overflowing vertical stand- pipes has been investigated. The experimental results indicate that in a closed tank equipped with a standpipe overflow system, flow conditions corresponding to Froude numbers less than three, vacuum pressures can be expected to develop. Fur- thermore, when the standpipe is placed at a distance of 1/8 diameter or less from the top of the tank cavitation occurs at a Reynolds number of about 30,000. Exper-imental evidence suggests that for a most effective design the relative inlet dis- tance to the top of the tank be chosen equal to one standpipe diameter. Inlet re- sistance coefficients to be used in the analysis of the flow have also been inves-tigated and compared with previously published data.
Year: 1991