A high-order local correlation based transition model for transonic airfoil flows

IF 2.5 3区 工程技术 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Computers & Fluids Pub Date : 2024-10-28 DOI:10.1016/j.compfluid.2024.106461
Matthias Plath , Florent Renac , Olivier Marquet , Christian Tenaud
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Abstract

Accurate transition modeling is a key ingredient towards the all-time goal of improved aerodynamic performance in the aircraft industry. While several different approaches exist to model transition, local correlation based transition models (LCTM) are one of the most versatile strategies. Many versions of LCTM were proposed in the context of lower order finite volume discretizations, but so far only a few transition models have been brought to higher-order numerical schemes. The present work represents a first attempt of including a one equation LCTM into the high-order discontinuous Galkerin (DG) framework. Several modifications are accessed to improve the model’s robustness and tailor it for transonic airfoil flows. Validation is conducted for a series of test cases, starting with zero pressure gradient flat plates, progressing through high Reynolds number airfoil flows, and concluding with a complex unsteady transonic buffet scenario. All results are compared against experiments and previous numerical references.
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基于高阶局部相关性的跨音速翼面流过渡模型
精确的过渡建模是飞机工业实现提高气动性能这一全时目标的关键要素。虽然有几种不同的过渡建模方法,但基于局部相关性的过渡模型(LCTM)是最通用的策略之一。在低阶有限体积离散化的背景下提出了许多版本的 LCTM,但迄今为止,只有少数过渡模型被引入到高阶数值方案中。本研究首次尝试将单方程 LCTM 纳入高阶非连续加尔克里林(DG)框架。为了提高模型的鲁棒性并使其适合跨音速机翼流,我们对模型进行了一些修改。对一系列测试案例进行了验证,从零压力梯度平板开始,到高雷诺数机翼流,最后是复杂的非稳态跨声速缓冲情景。所有结果都与实验和以前的数值参考资料进行了比较。
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来源期刊
Computers & Fluids
Computers & Fluids 物理-计算机:跨学科应用
CiteScore
5.30
自引率
7.10%
发文量
242
审稿时长
10.8 months
期刊介绍: Computers & Fluids is multidisciplinary. The term ''fluid'' is interpreted in the broadest sense. Hydro- and aerodynamics, high-speed and physical gas dynamics, turbulence and flow stability, multiphase flow, rheology, tribology and fluid-structure interaction are all of interest, provided that computer technique plays a significant role in the associated studies or design methodology.
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