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A 3D HIGHER ORDER TIME DOMAIN RANKINE PANEL METHOD FOR WAVE-CURRENT INTERACTION

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Author(s):
Ruggeri, Felipe ; Watai, Rafael A. ; Simos, Alexandre N. ; ASME
Total Authors: 4
Document type: Journal article
Source: PROCEEDINGS OF THE ASME 35TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING , 2016, VOL 7; v. N/A, p. 10-pg., 2016-01-01.
Abstract

The wave-current effects are very important in several offshore applications, for instance, the wave-drift-damping of a Turret moored FPSO. This papers presents the incorporation of current effects in the higher order time domain Rankine Panel Method on development in the Numerical Offshore Tank (TPN) at the University of Seto Paulo (USP) already introduced in [1]. The method is based on a perturbation theory to study first and second order effects, considering the geometry described using NURBS (Non Uniform Rational Basis Spline) and the potential function, free surface elevation, pressure etc by B-splines of arbitrary degree. The study is performed for a simplified geometry (sphere) and the results regarding a fixed hemisphere compared to other numerical methods considering both first and second order quantities are presented. (AU)

FAPESP's process: 12/06681-7 - A numerical method for non linear analysis of the dynamics of marine systems under gravity waves and current.
Grantee:Felipe Ruggeri
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 10/08778-2 - Time domain boundary elements method for seakeeping analysis of marine systems
Grantee:Rafael de Andrade Watai
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)