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Aerodynamic investigation of blunt and slender bodies in ground effect using OpenFOAM

机译:采用OpenFoam在地面效应中的钝性和细长体的空气动力学调查

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The main purpose of this numerical study is to assess the capability of OpenFOAM in predicting aerodynamic performance of blunt and slender devices for automotive and motorsport applications such as a diffuser-equipped blunt body and a F1 single element front wing in ground effect. Reynolds Averaged Navier-Stokes (RANS) simulations were carried out at different values of ride height and diffuser angle/angle of attack: predictions of integral quantities, such as drag (CD) and lift (CL) coefficients were validated against the available set of experimental data from Loughborough and Southampton Universities. Results put in evidence that OpenFOAM is suitable for fulfilling the goal of this study, even if the entire workflow (from meshing to calculation) is not user-friendly: the success of the simulations strongly depends on quality of the mesh, turbulence model, type of solver and numerical setup.
机译:该数值研究的主要目的是评估OpenFoam在预测用于汽车和摩托车应用的钝器和细长装置的空气动力学性能,例如在地面效果的漫射器的钝体和F1单元素前翼的钝化应用中。 Reynolds平均Navier-Stokes(RANS)模拟在不同的骑行高度和扩散角/攻角/攻角中进行:积分数量的预测,例如拖动(CD)和升力(CL)系数针对可用组验证 来自Loughborough和南安普敦大学的实验数据。 结果表明,即使整个工作流程(从啮合到计算)不是用户友好而不是用户的 求解器和数值设置。

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