An Approximation to Energy Dissipation in Time Domain Simulation of Sloshing Wav

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ES._A*ecP0An Approximation to Energy Dissipation in Time Domain Simulation of Sloshing Waves Based on Linear Potential Theory

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/p;Wm;B&cm0【摘要】:This paper proposes a new approximation to energy dissipation in time domain simulation of sloshing waves by use of a linear potential theory.The boundary value problem is solved by the NURBS(non-uniform rational B-spline) higher-order panel method,in which a time-domain Green function is employed.The energy dissipation is modeled by changing the boundary condition on solid boundaries.Model experiments are carried out in a partially filled rectangular tank with forced horizontal motion.Sloshing-induced internal pressures and horizontal force obtained numerically and experimentally are compared with each other.It is observed that the present energy dissipation approximation can help produce a fair agreement between experimental forces and those of numerical simulations.水利论文%Zqt].KjX5p7F1e;|

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【作者单位】:

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|-IE6c kg8u7L6Z0tank sloshing;energy dissipation;NURBS higher-order method;time domain水利论文!Nv D SCK F7as;g

(E?s-~w7qp? q0【基金】:supported by the National Natural Science Foundation of China (Grant No. 50779008)

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b:naG#NuDL0the Program for New Century Excellent Talents in University (Grant No. NCET-07-0230)

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*v&a'LPcjq0the “111” Project of China (Grant No. B07019)水利论文s(nh]:|&c1]9y

Sb.uW1E$d]"l-H0【分类号】:O35

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【正文快照】:

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X`8`}4u$g{'nn${c)U01. Introduction Sloshing induced loads and forces are important in simulating ship motions in waves. However, the ship motion and the sloshing inside the tank are coupled. For the solution of the coupled problem, the time domain approach is preferred bec

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