Micro Aerial Vehicles (MAVs) are state of the art in the aerospace industry and are involved in many operations. The reduced dimensions of these vehicles generate very low Reynolds number conditions in which separation-induced transition typically occurs. The extremely large computational cost of scale resolving simulations, which are capable of capturing laminar to turbulent transition, is prohibitive for most engineering and design applications. Therefore, it becomes very interesting to couple transition models with conventional Reynolds Averaged Navier–Stokes (RANS) simulations to allow the prediction of transition to turbulence at a reduced computational cost. This paper performs an investigation of the application of the \(\gamma \text{-Re }_{\theta }\) transition model analysing different empirical correlations available in literature and studying the influence of the relevant model parameters using the commercial Computational Fluid Dynamics (CFD) code STAR-CCM+. The flow around the Eppler 387, Selig/Donovan 7003 and Ishii airfoils has been studied for different Reynolds numbers and angles of attack comparing the drag and lift forces and separation bubble characteristics with experimental and numerical results reported in literature.

微型飞行器 (MAV) 是航空航天工业中的最先进技术，并涉及许多操作。这些车辆的尺寸减小会产生非常低的雷诺数条件，其中通常会发生分离引起的转变。能够捕捉层流到湍流转变的尺度解析模拟的巨大计算成本对于大多数工程和设计应用来说是令人望而却步的。因此，将过渡模型与传统的雷诺平均纳维-斯托克斯 (RANS) 模拟相结合，以降低计算成本来预测湍流过渡变得非常有趣。本文研究了\(\gamma \text{-Re }_{\theta }\)过渡模型分析文献中可用的不同经验相关性，并使用商业计算流体动力学 (CFD) 代码 STAR-CCM+ 研究相关模型参数的影响。围绕 Eppler 387、Selig/Donovan 7003 和 Ishii 翼型的流动已针对不同的雷诺数和攻角进行了研究，并将阻力和升力以及分离气泡特性与文献中报道的实验和数值结果进行了比较。