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工程力学  2015 

三维波流耦合水槽模拟模型

DOI: 10.6052/j.issn.1000-4750.2014.03.0190

Keywords: 数值波流水槽,质量源造波,海绵层消波,波流相互作用,水中结构物,波流荷载

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Abstract:

水中结构物通常会受到波浪和水流的联合作用,为了得到作用在结构上的波流荷载,该文基于Flow-3D软件建立了三维波流水槽的模拟模型。为了准确模拟波浪和水流的相互作用,避免将造波边界和水流边界同时叠加在入口边界处,采用质量源造波法来实现内造波。利用Flow-3D的二次开发功能在水槽两端设置海绵层消波区,并结合Sommerfeld辐射边界条件来实现水槽的通流消波。对波浪的传播、波流相互作用试验的流场以及波流和柱体结构相互作用试验的流场进行数值模拟,结果表明:所建立的三维波流水槽模型可以准确地模拟波浪和水流的相互作用以及波流对结构的联合作用,并有效地进行消波,避免了二次反射,可用于波浪和水流联合作用下水中结构物波流荷载的研究。

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