Effect of the yaw angle on turbulent flow structures around the submarine model

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外文摘要：The objective of this paper is to investigate the turbulent flow structures around the submarine model and evaluate the effect of the yaw angle on the turbulent flow characteristics.The large eddy simulation based on the boundary data immersion method is used to investigate.The computational domain consists of 1.2x 108 uniformly distributed Cartesian orthogonal grid nodes to capture the basic flow characteristics around the model.The pressure coefficient,friction coefficient and wake velocity distribution are in good agreement with the experimental data.Three different types of vortex structures were mainly captured around the model,including horseshoe vortex,sail tip vortex and crossflow separation vortex.With the increase of the yaw angle,the asymmetry of the horseshoe vortex and the tip vortex gradually increases,and the vortex strength of the vortex leg on the windward of the horseshoe vortex and the vortex strength of the tip vortex also increase gradually.For the crossflow separation vortex,the flow separation zone gradually expands and migrates downstream with the increase of the yaw angle.

外文关键词：

Vortex structuresubmarine modelboundary data immersion methodyaw angle

作者：

Yi-jing Hu、Yi Qu、Qin Wu、Biao Huang

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作者单位：

School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China

Beijing Institute of Electronic System Engineering,Beijing 100854,China

基金：

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities

项目编号：

2022YFB3303500522790812023CX01004

出版年：

2024

DOI：

10.1007/s42241-024-0036-4

水动力学研究与进展B辑

中国船舶科学研究中心

水动力学研究与进展B辑

CSTPCDEI

影响因子：0.596

ISSN：1001-6058

年,卷(期)：2024.36(3)