. The design, development, and evaluation of a differential pressure gauge directional wave monitor. Water waves; Pressure transducers. - 1^2 - aligned with arm 2 whereas there are relatively large slope (and pressure) differences along the wave ray — aligned with arm 3. (See Figure VI-15.). As is illustrated in Figure VI-14, one expects that the wave frequencies of greatest energy should be the same for both the water surface displacement and slope terms. It is instructive to note, however, that greater energy appears in the higher frequency bands of the slope spectra than in those of the wav
. The design, development, and evaluation of a differential pressure gauge directional wave monitor. Water waves; Pressure transducers. - 1^2 - aligned with arm 2 whereas there are relatively large slope (and pressure) differences along the wave ray — aligned with arm 3. (See Figure VI-15.). As is illustrated in Figure VI-14, one expects that the wave frequencies of greatest energy should be the same for both the water surface displacement and slope terms. It is instructive to note, however, that greater energy appears in the higher frequency bands of the slope spectra than in those of the wave piGURE VI-15: Wave crest ap- proximately aligned with spectrum. This too is an expected .p2 arm result since the energy spectrum of of slope (developed from a differential pressure signal) differs from that of water surface displacement (generated from the absolute pressure signal) by a factor of wavenumber-squared. The energy spectrum of the water surface displacement is developed through the frequency-by-frequency division of the dynamic pressure energy spectrum by the specific gravity of seawater (squared) and the square of the pressure response function, Kp. The water surface slope energy spectrum is similarly developed through the division of the differential pressure energy spectrum by the squares of the specific gravity of seawater and the pressure response function. The energy. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bodge, Kevin R; Coastal Engineering Research Center (U. S. ). Fort Belvoir, Va. : The Center ; Springfield, Va. : National Technical Information Service, Operations Division [distributor]
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