Hydrodynamic coefficients for a vertical tube in an array |
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| Authors: | Subrata K Chakrabarti |
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| Institution: | Marine Research, Chicago Bridge & Iron Co. Plainfield, IL 60544, USA |
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| Abstract: | In a wave tank test with vertical tube array arranged transverse to the wave direction, forces on two 1 ft instrumented sections as well as on the tubes are measured. The effect of the spacing of the tubes upon the forces on the tubes are investigated. The mass and drag coefficients are determined from the forces on the instrumented sections of the tubes. They are presented as functions of the Keulegan-Carpenter number (or the period parameter) and the tube spacing. The total forces on the tubes are computed based on the mean values of the hydrodynamic coefficients. The correlation between these calculated values and the measured forces is found to be good. |
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