Record Details

Wave effects on a pressure sensor

DRS at CSIR-National Institute of Oceanography

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Field Value
 
Title Wave effects on a pressure sensor
 
Creator Joseph, A.
DeSa, E.J.
Desa, E.
McKeown, J.
Peshwe, V.B.
 
Subject wave effects
pressure sensors
wave propagation
performance assessment
oscillatory flow
tidal currents
 
Description Wave flume experiments indicated that for waves propagating on quiescent waters the sensor's performance improved (i.e. the difference Delta P between the average hydrostatic and measured pressures was small and positive) when the inlet was at the centre and flush with a large, thin, smooth circular horizontal end-plate. In this case, isolation of the pressure inlet from the separated flow and vortices shed by the sensor housing was partly responsible for the observed improvement. Another reason for improvement seems to have been a much reduced value of the wave-induced oscillatory boundary layer flow, in the vicinity of the pressure inlet, as compared to the mainstream oscillatory flow. The sensor's performance wa better for the case of waves riding on currents as the Delta p in this case was the sum of a positive Delta p for currents alone and a negative Delta p for waves alone. This result is of special significance to tidal measurements of coastal waters in which waves propagate on tidal currents.
 
Date 2009-01-21T11:25:28Z
2009-01-21T11:25:28Z
1996
 
Type Conference Article
 
Identifier International Conference in Ocean Engineering COE '96, 17-20 Dec 1996. Proceedings, 568-572p.
http://drs.nio.org/drs/handle/2264/2273
 
Language en
 
Rights Copyright [1996]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Allied, Chennai (India)