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DLR TAU Simulations for the Third AIAA Sonic Boom Prediction Workshop Near-Field Cases

机译:DLR TAU模拟第三个AIAA Sonic Boom预测研讨会近场案例

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The accurate prediction of the sonic boom is essential for the development of a future low boom supersonic aircraft. In this paper the best practice for predicting near-field pressure signatures with the DLR TAU code is applied for geometries and grids provided by the third AIAA Sonic Boom Prediction Workshop. The near-field part of the workshop provided two cases, the Biconvex case and the NASA C608. Both geometries were analyzed by DLR. The Biconvex case is utilized to study shock-plume interactions and the NASA C608 case is used to assess the status of near-field simulations for a realistic low boom flight demonstrator. Results for the DLR TAU simulations on the workshop-provided grids are presented for different grid refinement levels using RANS simulations. In addition to the provided grids, a setup for mixed-element grids with varying setups is described. The predicted near-field signatures agree very well with other workshop participants' results and wind tunnel data.
机译:Sonic Boom的准确预测对于未来低动臂超音速飞机的开发至关重要。 在本文中,可以使用DLR TAU代码预测近场压力签名的最佳做法是由第三AIAA Sonic Boom预测研讨会提供的几何形状和网格。 研讨会的近场部分提供了两种情况,Biconvex案例和NASA C608。 通过DLR分析了两种几何。 BIConvex案例用于研究冲击羽互动,NASA C608案例用于评估逼真的低繁荣飞行演示器的近场模拟状态。 使用RANS模拟,为不同的网格细化水平提供了在车间提供的网格上的DLR TAU模拟。 除了提供的网格之外,还描述了具有不同设置的混合元件网格的设置。 预测的近场签名与其他研讨会参与者的结果和风洞数据非常吻合。

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