• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean Engineering >Evolution of a two-layer fluid for solitary waves propagating over a submarine trench
【24h】

Evolution of a two-layer fluid for solitary waves propagating over a submarine trench

机译：在海底沟槽中传播的孤立波的两层流体的演化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The induced density-stratified fluid motion of a solitary wave propagating over a submarine trench was investigated numerically and experimentally. A new laboratory experiment in a two-dimensional wave flume on dense fluid transport and flow fields inside and around the trench was reported using a measurement framework of laser-induced fluorescence (LIF) and particle image velocimetry (PIV) techniques. A 3D Navier-Stokes numerical model was applied to trace the dense fluid transport using the volume of fluid method. Good agreements were obtained between experiments and computed results. The calibrated model was then used to examine the transport processes of the various dense fluids. Particular attention is paid to the evolution of vortices induced by solitary waves. The results indicate that transported height of dense fluid around the windward trench wall decreases when the dense fluid density increases or wave nonlinearity decreases. The dense fluid is allowed to be transported toward the upstream of the trench when a denser fluid or lower wave nonlinearity is considered. The presence of strong vortical structure and vorticity strength was observed as the dense fluid density decreases or wave nonlinearity increases. Quantitative analyses also demonstrate that either density of dense fluid or wave nonlinearity significantly affects the transport process of the dense fluid. (c) 2015 Elsevier Ltd. All rights reserved.
机译：通过数值和实验研究了在海底沟槽上传播的孤波在密度上引起的分层流体运动。使用激光诱导荧光（LIF）和粒子图像测速（PIV）技术的测量框架，在二维波槽中对沟槽内和沟槽周围的密集流体传输和流场进行了一项新的实验室实验。应用3D Navier-Stokes数值模型，使用流体体积法跟踪稠密流体的传输。实验和计算结果之间取得了良好的一致性。然后使用校准的模型检查各种稠密流体的传输过程。特别注意由孤立波引起的涡旋的演变。结果表明，当致密流体密度增加或波非线性减小时，上风向沟槽壁周围致密流体的输送高度减小。当考虑到较稠密的流体或较低的波非线性时，可以将稠密的流体向沟槽的上游传输。随着致密流体密度的降低或波非线性的增加，观察到强涡旋结构和涡旋强度的存在。定量分析还表明，稠密流体的密度或波非线性都显着影响稠密流体的传输过程。 （c）2015 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号