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Data Acquisition and Analysis of Pressure Fluctuations in Hydraulic Jumps

by Joel W. Toso, Univ of Minnesota, St. Anthony Falls, Hydraulic Lab, Minneapolis, MN, USA,
C. Edward Bowers, Univ of Minnesota, St. Anthony Falls, Hydraulic Lab, Minneapolis, MN, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

The paper reports on a study to procure basic data on large pressure fluctuations in hydraulic jump stilling basins. Interest in pressure fluctuations relates to: the effect of dynamic loading on the structural integrity of the stilling basin; vibration of free standing walls; and cavitation damage due in part to the fluctuating pressures. An APPLE IIe microcomputer was used as the primary data acquisition device, supplemented at times by a Sanborn recorder. The computer was linked to pressure transducers mounted in the Laboratory channel floor to sample, store, analyze and output data. Procedures included computation of the maximum, minimum, average, standard deviation and skewness of data on pressure fluctuations, and others.

Subject Headings: Data analysis | Data collection | Hydrologic data | Stilling basins | Hydraulic jump | Hydraulic pressure | Dynamic loads

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