中文摘要：

基于欧拉两相流理论,对旋转帽罩水滴撞击特性进行了数值模拟,提出了旋转部件表面对流换热计算方法,并基于改进Messinger结冰模型开发了旋转帽罩电热防冰计算程序,对旋转帽罩瞬态防冰过程进行了数值模拟研究。结果表明：旋转运动对旋转帽罩表面对流换热起到增强作用,且在供给相同加热热流密度时转速越大,防冰表面温度越低;防冰系统启动阶段,旋转帽罩表面会发生结冰和冰脱落现象,考虑结冰过程后系统的响应时间缩短;当电加热功率相同时,周期电加热防冰方式更为节能;当电加热能耗相同时,周期电加热方式系统响应更快。

英文摘要：

Icing on the rotary cone surface of an aircraft engine may cause flight safetyproblem. Some works including the drops impingement characteristics of rotary cone based onEulerian two-phase flow theory, presenting of the surface convective heat transfer calculationmethod of rotating part and the development of electro-thermal anti-icing calculating programbased on improved Messinger freezing model were presented in this paper. Based on thoseresearches, several benchmark examples were tested to verify the methods, to research the antiicingtransient process and predict the performance of periodic electric-heating anti-icing system.The results showed that the rotation of the rotary cone could enhance convective heat transfer,the surface temperature was lower with greater revolving speed under the same heating power.During Anti-icing system startup stage, icing and ice shedding phenomenon happened, and theresponse time of the system with freezing was reduced. Using the same electric heating power,the energy efficient of periodic electrical heating anti-icing process was higher, while with thesame electric heating energy consumption, the response speed of periodic electric heating antiicingsystem was faster, however it faced more risks of freeze.