Acoustic excitation of hull surfaces by propeller sources |
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Authors: | Email author" target="_blank">Orsola Rath?SpivackEmail author Roger?Kinns Nigel?Peake |
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Institution: | (1) David Taylor Model Basin, NSWCCD, 9500 MacArthur Blvd, West Bethesda, MD 20817-5700, USA;(2) NASA Goddard Space Flight Center, and Joint Center for Earth Systems Technology, University of Maryland, USA |
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Abstract: | We present preliminary results from our new ship motion model that includes both strong and weak three-dimensional interactions between environmental surface waves and ship bodies in arbitrary water depth. The linear solutions of steady flow using the new model agree well with those obtained using the Green function methods. When the Froude number Fn is large, the fully nonlinear solutions of our model are significantly different from linear solutions, even in calm water. The interactions between the ship and incident gravity waves are completely different from those in linear solutions even with small Fn and moderate-amplitude surface waves (e.g., Fn = 0.25 and a significant wave height of about 1–3m). |
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Keywords: | Strong and weak Three-dimensional wave– wave interactions Ship body Environment |
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