考虑底摩阻损耗的波浪传播与衰减计算的边界元法  

Boundary element method for wave propagation and attenuation with bottom friction

作　　者：李玉成[1] 于洋[2] 孙大鹏[1] 

机构地区：[1]大连理工大学海岸与近海工程国家重点实验室,辽宁大连116024 [2]大连海事大学航海学院

出　　处：《水动力学研究与进展（A辑）》2005年第5期641-647,共7页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金(49876026)资助

摘　　要：边界元法在势流计算中具有使问题降低一维的优点。为了将边界元法与基于粘性流体理论的底部波能损耗结合起来,本文采用一种包含底摩阻系数的底部边界条件,可以在考虑底摩阻损耗的情况下计算极平缓岸坡上波浪的传播与衰减。数值结果得到了物模实验数据的验证。The advantage of boundary element method（BEM）is that one dimension is reduced for solving problems. In order to use BEM as well as to take into account the bottom friction for calculating wave propagation and attenuation on very gentle slope, this paper establishes a mathematical model, in which a bottom boundary condition including frictional factor is adopted. The numerical results are verified by physical model tests.

关 键 词：底摩阻损耗 边界元法 波浪衰减 

分 类 号：O353[理学—流体力学]