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- W560265665 abstract "In this paper the authors present an experimental and numerical investigation of the radiation effect of a ship with forward speed in the frequency domain. The tests were performed in a recirculating water channel. Forces, moments and wave-elevation were measured on series 60 C sub B=0.6 and 0.8 ship models in forced heave and pitch oscillations. A velocity based first order Boundary Element Method was developed using the forward speed diffraction radiation Green function. The calculations of this function and its derivatives as well as its integration on flat panels were performed by controlling both the accuracy and the computational time. The Fourier integration was done using an Adaptative Simpson method with a prescribed error. In what concerns the surface integrations, a mixing numerical technique (Gauss method with a number of points which are functions of the distance between the field point and the source panel) and an analytical integration (based on the Stokes theorem to transform the boundary integral into a contour one, the remaining Fourier integrals over the complex exponential function are then computed with the same Adaptative method) was used. For the wave pattern calculations, an extrapolation technique was used to obtain improved numerical results for a field point located on the free surface." @default.
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- W560265665 date "2001-01-01" @default.
- W560265665 modified "2023-09-24" @default.
- W560265665 title "Frequency Domain Numerical and Experimental Investigation of Forward Speed Radiation by Ships" @default.
- W560265665 hasPublicationYear "2001" @default.
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