在comsol多物理中验证一个双流体流模型,用于解决围绕空气动力学配置文件的流量问题
Z M Malikov1, M E Madaliev2,3, S L Chernyshev4,5
1Institute of Mechanics and Seismic Resistance of Structures of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan.
Scientific reports
|January 27, 2024
概括
在Comsol Multiphysics中,一个新的双流体流模型准确地模拟了亚声波翼流. 与其他模型相比,它显示了NACA 4412气翼周围的分离流量的精度提高.
科学领域:
- 计算流体动力学的流体动力学.
- 空气动力学 航空动力学
- 流建模 流建模
背景情况:
- 在空气动力学设计中,精确模拟空气周围的亚声波空气流是至关重要的.
- 现有的流模型 (RANS,LES,DES) 在预测诸如分离等复杂流体现象方面存在局限性.
- 双流体流模型为CFD模拟提供了潜在的进步.
研究的目的:
- 在Comsol Multiphysics软件中实现和验证一个双流体流模型.
- 为了评估模型在DSMA661和NACA 4412气翼周围的亚声波流的性能.
- 将两流体模型的结果与既有模型和实验数据进行比较.
主要方法:
- 使用有限元法实现双流体流模型的数值实现.
- 应用Galerkin最小方程方法来稳定离散方程.
- 在特定的攻击角度模拟DSMA661和NACA 4412气形周围的次声波流.
主要成果:
- 两流体模型与SST结果和DSMA661气翼周围连续流动的实验数据密切匹配.
- 对于具有流量分离的NACA 4412气翼,双流体模型比其他流模型提供了更准确的预测.
- 康索尔多物理实现表现出良好的收性,稳定性和高精度.
结论:
- 双流体流模型是模拟亚声波翼流的有希望的方法,特别是在流量分离的情况下.
- 康索尔多物理 (Comsol Multiphysics) 为实现和利用先进的流模型提供了一个强大的平台.
- 该研究验证了双流体模型在复杂的空气动力学场景中超越现有模型的能力.
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