航空发动机热气防冰结构的冲击换热特性研究

为了验证冲击换热特性在热气防冰结构中的适用性，利用数值模拟方法对典型热气防冰系统整流支板中的冲击换热结构进行了研究。根据相应的换热试验简化了计算模型，利用该模型计算了冲击距离、冲击孔直径、冲击孔间距和Re对热气防冰系统冲击结构换热能力的影响，验证了整流支板中冲击换热结构的换热规律与单独冲击换热结构的一致性，并获得了热气防冰系统中其他结构对冲击换热结构换热的影响规律。计算结果表明：减小冲击距、增加孔径、减小孔间距及增大Re都能够增强换热能力。

Study of Impacting Heat Transfer Characteristic for Aeroengine Heat Anti-icing Structure

In order to validate the application of impacting heat transfer characteristic in the anti-icing structure,the impacting heat transfer of typical heat anti-icing system in fairing plate was studied by numerical simulation.The numerical model was obtained by experiment.The effect of impact distance,impacting hole diameter,impacting hole spacing and Reynolds number(Re) on the heat transfer of impacting structure for the heat anti-icing system was calculated by the model.The heat transfer rule consistency betw...