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首页> 外文会议>Congress of the International Council of the Aeronautical Sciences; 20060903-08; Hamburg(DE) >MIXED CONVECTION IN A FULL SCALE AIRCRAFT CABIN MOCK-UP
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MIXED CONVECTION IN A FULL SCALE AIRCRAFT CABIN MOCK-UP

机译：大型飞机机舱模型中的对流混合

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摘要

For the study of mixed convective airflows, a full scale double aisle aircraft cabin mock-up has been built at the German Aerospace Center in Gottingen. It is designed as a testing configuration with realistic boundary conditions for commercial Computational Fluid Dynamics (CFD)-codes as well as the DLR in house code THETA. The aim is the reliable prediction of cabin air-flow by means of CFD under consideration of computational time. Special attention will be given to the proper prediction of the separation lines as well as the resulting temperature distribution, making necessary validation of the used turbulence and radiation models. In order to provide a comprehensive validation data base the flow in the mock-up was studied with Particle Image Velocimetry (PIV), infrared thermography, and field temperature measurements. The influence of buoyancy effects and the interaction of the incoming air jets on the flow field have been studied independently by switching from isothermal to cooling conditions and by a systematical variation of the relative volume flow of the air inlets.
机译：为了研究混合对流气流，在哥廷根的德国航空航天中心建造了一个全尺寸的双通道飞机机舱模型。它被设计为具有实际边界条件的测试配置，适用于商业计算流体力学（CFD）代码以及内部代码THETA的DLR。目的是在考虑计算时间的情况下，通过CFD对机舱气流进行可靠的预测。将特别注意分隔线的正确预测以及由此产生的温度分布，从而对使用的湍流和辐射模型进行必要的验证。为了提供全面的验证数据库，使用粒子图像测速（PIV），红外热成像和现场温度测量研究了模型中的流动。通过从等温切换到冷却条件并通过系统改变进气口的相对体积流量，独立研究了浮力效应的影响和进气流的相互作用对流场的影响。

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