民用飞机机翼结冰试验与数值预测

发布时间：2018-04-05 05:33

本文选题：民用飞机　切入点：结冰　出处：《航空动力学报》2017年01期

【摘要】：描述了某民用飞机在意大利IWT(icing wind tunnel)冰风洞的机翼结冰试验结果.根据冰风洞试验状态点,开展了基于拉格朗日方法和Messinger模型的冰形数值预测,并对试验冰形和数值预测冰形进行了对比分析.霜冰的数值预测结果与试验结果一致性良好,对于明冰,数值结果和试验结果存在一定的差异,原因在于:1明冰结冰过程中较强的绕流变化增大了冰积聚非定常效应对数值预测的影响;2采用的结冰热力学模型对明冰的模拟存在一定局限性;3明冰对于冰风洞设备工况和试验模型表面粗糙度的影响更为敏感.
[Abstract]:The results of wing icing test of a civil aircraft in an ice tunnel of IWT(icing wind tunneling in Italy are described.According to the state point of ice wind tunnel test, the ice shape numerical prediction based on Lagrangian method and Messinger model is carried out, and the ice shape is compared and analyzed.The numerical prediction results of frost ice are in good agreement with the experimental results, and there are some differences between the numerical results and the test results for the open ice.The reason is that the strong change of flow around the ice during the freezing process increases the influence of the unsteady effect of ice accumulation on the numerical prediction. The thermodynamic model of ice formation has some limitations on the simulation of open ice.The influence of the operating conditions of the equipment and the surface roughness of the test model is more sensitive.
【作者单位】：中国商用飞机有限责任公司上海飞机设计研究院;中国商用飞机有限责任公司科技委;
【分类号】：V211.74;V244.15

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