Abstract
The longitudinal space-time correlation function of the fluctuating pressures at the wall in turbulent flow has been measured in the U. S. Navy Underwater Sound Laboratory'a 3.5-in. turbulent pipe-flow facility. Measurements in octave and half-octave frequency bands at zero time delay and at various spatial separations of the transducers are presented and compared with theoretical investigations to illustrate the effect of finite filter bandwidths on the longitudinal space-correlation function.
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