Flow Simulation of N3-X Hybrid Wing-Body Configuration

Flow Simulation of N3-X Hybrid Wing-Body Configuration
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N3-X混合翼身结构流动仿真

DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Liou
M. Liou
中科院分区：
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文献类型：
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作者：
Hyoung Jin Kim;M. Liou

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N2B混合翼机身飞机的概念​​设计是为了满足亚音速固定翼项目设定的N+2代运输机的环境和性能目标。在本研究中，使用雷诺平均纳维-斯托克斯流求解器和非结构化网格来模拟 N2B 配置周围的流场。发动机风扇面和喷嘴排气平面的边界条件由 NPSS 热力学发动机循环模型的响应面提供。目前的流动模拟揭示了由于边界层吸入偏移入口和短舱机身干扰而产生的具有挑战性的设计问题。 N2B配置可以成为多学科设计优化技术应用的良好试验台。
The N2B hybrid wing body aircraft was conceptually designed to meet environmental and performance goals for the N+2 generation transport set by the subsonic fixed wing project. In this study, flow fields around the N2B configuration is simulated using a Reynolds-averaged Navier-Stokes flow solver using unstructured meshes. Boundary conditions at engine fan face and nozzle exhaust planes are provided by response surfaces of the NPSS thermodynamic engine cycle model. The present flow simulations reveal challenging design issues arising from boundary layer ingestion offset inlet and nacelle-airframe interference. The N2B configuration can be a good test bed for application of multidisciplinary design optimization technology.