Numerical Simulation of Flow Characteristics of the Underwater Vehicle with a Cylindrical Structure Based onDifferent Turbulence Models

doi:10.12382/bgxb.2022.B022

Abstract

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

CLC Number:

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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