| DOI | Resolve DOI: https://doi.org/10.1175/1520-0426(1993)010<0629:IAPUAH>2.0.CO;2 |
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| Author | Search for: Colbourne, E. B.; Search for: Helbig, J.; Search for: Cumming, D. |
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| Format | Text, Article |
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| Subject | ADCP; fairing |
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| Abstract | This paper presents the results of the design and testing of a hydrodynamic mount for a direct-reading 150 kHz acoustic Doppler current profiler (ADCP) operated over the side of a small inshore vessel in transect mode (i.e., while steaming). The mount consists of a symmetric wing section encompassing the ADCP pressure housing and a custom teardrop-shaped fairing surrounding the transducer heads. It was found that the longitudinal (along-ship) force resulting from the form drag and the wave generation on the hydrodynamic mount was less than one-half of that on the unfaired ADCP. This together with improved flow characteristics resulted in a reduction in the standard deviations of the measured currents from 6 to 10 cm s/sup -1/ during a survey in 1990 without the fairing to 3-5 cm s/sup -1/ for a survey in 1991 with the fairing. The mount also permitted a doubling in ship speed from about 2.0 to 4.0 m s/sup -1/ (4-8 kt). The results also indicate the minimum noise levels that can be expected at the spatial resolutions usually required in inshore regions. |
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| Publication date | 1993 |
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| In | |
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| Peer reviewed | Yes |
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| Identifier | IR-1992-04 |
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| NRC number | 5403 |
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| NPARC number | 8894973 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | c2c0c152-63ff-4ad9-ba01-b611335331e8 |
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| Record created | 2009-04-22 |
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| Record modified | 2020-04-24 |
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