首页> 外文会议>31st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit July 10-12, 1995/San Diego, CA >Aerodynamic Performance Predictions of Single and Twin Jet Afterbodies
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Aerodynamic Performance Predictions of Single and Twin Jet Afterbodies

机译:单发和双发喷气机机体的空气动力性能预测

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The multiblock three-dimensional Navier-Stokes method PAB3D was utilized by the Component Integration Branch (formerly Propulsion Aerodynamics Branch) at the NASA-Langley Research Center in an internationaly study sponsored by AGARD Working Group # 17 for the assessment of the state-of-the-art of propulsion-airframe integration testing techniques and CFD prediction technologies. Three test geometries from ONERA involving fundamental flow physics and four geometries from NASA-LaRC involving realistic flow interactions of wing, body, tail, and jet plumes were chosen by the Working Group. An overview of results on four (1 ONERA and 3 LaRC) of the seven test cases is presented. External static pressures, integrated pressure drag and total drug were calculated for the Langley test cases and jet plume velocity profiles and turbulent viscous stresses were calculated for the ONERA test case.
机译:多块三维Navier-Stokes方法PAB3D在AGARD工作组#17赞助的国际研究中被NASA-Langley研究中心的组件集成分公司(以前的推进空气动力学分公司)使用。推进技术-机体综合测试技术和CFD预测技术。工作组选择了来自ONERA的三种测试几何形状,这些几何形状涉及基础流动物理学,而来自NASA-LaRC的四种几何形状,涉及机翼,机体,尾巴和喷气羽的实际流动相互作用。概述了七个测试用例中的四个(1个ONERA和3个LaRC)的结果。对Langley测试用例计算了外部静压,综合压力阻力和总药物,而在ONERA测试用例中计算了射流速度分布和湍流粘性应力。

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