Author(s): J. C. Sauma Haddad; J. Torchio; G. Tatone
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Abstract: This paper deals with an experimental methodology to evaluate the hydrodynamic loads acting on submerged hydraulic structures in macroturbulent flows. The fundamental unknowns investigated are the random components of forces and moments generated by the process. The procedure is based on the integration of the fluctuating pressure diagram througout the surface (recorded through several pressure sensors) at a given time, and then the statistical analysis for the resulting magnitudes. The principal problem to solve is the obtention of the simultaneous records of pressure fluctuations on the surface under consideration. In order to reach this objetive a sample and hold device plus an analogic to digital converter circuit was used. A portable computer and some ad hoc software development is the basic instrumentation.
Year: 1993