CFD-RANS model validation of turbulent flow: A case study on MAAT airship

Yong K. Chen, Xu Zhang
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引用次数: 3

Abstract

The Computational Fluid Dynamic (CFD) has a wide application in aerodynamic design of airship. In CFD simulations, a turbulence model plays a significantly important role in accuracy and resource cost. In this paper, a configuration of MAAT airship was investigated with different turbulence models under various angles of attack. Three most widely used turbulence models, Standard Spalart-Almaras, Realizable k-ε and SST k-ω, were tested and compared. The resource consumption study was based on the benchmark of 3000 iterations. According to the results, it is proved that Spallart-Allmaras model is the best model for steady-state airship simulation.
湍流CFD-RANS模型的验证:以MAAT飞艇为例
计算流体动力学(CFD)在飞艇气动设计中有着广泛的应用。在CFD模拟中,湍流模型在计算精度和资源成本方面起着非常重要的作用。本文对MAAT飞艇在不同迎角下的不同湍流模型进行了研究。本文对三种最常用的湍流模型——Standard Spalart-Almaras、Realizable k-ε和SST k-ω进行了测试和比较。资源消耗研究是基于3000次迭代的基准。结果表明,Spallart-Allmaras模型是飞艇稳态仿真的最佳模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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