基于不同湍流模型的水下航行体圆柱结构流动特性数值模拟

doi:10.12382/bgxb.2022.B022

摘要/Abstract

摘要： 为提高水下航行体的隐身性能，探究不同湍流模型对水下航行体圆柱结构水动力数值模拟的影响。基于OpenFOAM开源计算流体力学工具包，进行水下航行体圆柱结构的数值模拟。开发3种混合湍流模型嵌入OpenFOAM工具包，3种模型分别为尺度自适应模拟方法、部分平均N-S方程方法和改进的延迟分离涡方法。基于开发的3种模型进行数值计算仿真，得到水下航行体典型圆柱结构的绕流场分布以及受力特征。研究结果表明：湍流模型的选取对于水下航行体水动力模拟有着显著影响，所得结果对后续探究水下航行体辐射噪声的研究具有指导意义。

关键词: 湍流模型, 水下航行体, 圆柱绕流, 数值模拟

Abstract: In order to improve the stealth performance of underwater vehicles, the effects of different turbulence models on the numerical simulation of the underwater vehicle with a cylindrical structure are investigated. Numerical simulations have been carried out by using the open source computational fluid dynamics toolbox called OpenFOAM. Three hybrid turbulence models were developed and embedded in the OpenFOAM toolbox. The three models are the Scale Adaptive Simulation (SAS) method, the Partially Averaged Navier-Storks (PANS) equation method and the Improved Delayed Detach Eddy Simulation (IDDES) method. Based on the developed three models, numerical computations were performed to obtain the distribution of the flow field and force characteristics. The results showed that the turbulence model selection has a significant influence on the hydrodynamic simulation of the underwater vehicle, which may provide guidance for the subsequent research on the stealth technology of underwater vehicles.

Key words: turbulencemodel, underwatervehicle, flowaroundcylinder, numericalsimulation

中图分类号:

何佳伟，翟峻仪，高伟鹏，李烨. 基于不同湍流模型的水下航行体圆柱结构流动特性数值模拟[J]. 兵工学报, 2022, 43(S2): 53-63.

HE Jiawei, ZHAI Junyi, GAO Weipeng, LI Ye. Numerical Simulation of Flow Characteristics of the Underwater Vehicle with a Cylindrical Structure Based onDifferent Turbulence Models[J]. Acta Armamentarii, 2022, 43(S2): 53-63.

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