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首页> 外文期刊>Journal of Aircraft >Transport Aircraft Three-Dimensional High-Lift-Wing Numerical Transition Prediction
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Transport Aircraft Three-Dimensional High-Lift-Wing Numerical Transition Prediction

机译：运输飞机三维高起落机数值转换预测

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摘要

Laminar-turbulent transition appears in high-lift configurations through instabilities, attachment-line contamination, or separation. Its prediction may improve the estimation of maximum lift and allows the extrapolation from wind-tunnel measurements to flight conditions. This prediction is being inserted within Reynolds-averaged Navier-Stokes codes to become part of standard design procedures. This requires fast and reliable transition-prediction tools, a very difficult issue in itself. This paper presents recent ONERA progress based on three-dimensional coupling between Navier-Stokes and boundary-layer codes and internal transition prediction within the elsA Reynolds-averaged Navier-Stokes software and their application to a typical transport aircraft high-lift wing used as a common test case in the European projects EUROLIFT 1 and 2. In elsA, emphasis is placed on transition prediction in three-dimensional flows, and issues of contamination and relaminarization are discussed but are left for future tests.
机译：层流-湍流过渡通过不稳定性，附着线污染或分离而出现在高升程配置中。它的预测可以改善对最大升力的估计，并允许从风洞测量到飞行条件进行推断。该预测被插入到雷诺平均的Navier-Stokes代码中，成为标准设计程序的一部分。这就需要快速而可靠的过渡预测工具，这本身就是一个非常困难的问题。本文介绍了基于Navier-Stokes与边界层代码之间的三维耦合以及elsA雷诺平均Navier-Stokes软件内的内部转变预测的ONERA的最新进展及其在典型的运输机高升力机翼中的应用。欧洲项目EUROLIFT 1和2的常见测试用例。在elsA中，重点放在三维流中的过渡预测上，讨论了污染和再分层的问题，但留待以后的测试。

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