摘要
提出了一种计算飞机防冰热载荷的新方法,该方法利用CFD软件FLUENT及其自带的用户自定义函数UDF进行数值模拟。首先用FLUENT的两相流欧拉模型模拟空气-水滴两相流动,进而使用FLUENT内部的数据结构,通过UDF二次开发计算水滴撞击量和防冰热载荷,并且利用FLUENT的后处理功能对计算结果进行可视化图形显示。以某3D迎角传感器为例,进行了三维空气-水滴两相流和防冰热载荷计算,防冰所需热功率计算结果和实验数据误差为7·5%,在工程计算允许范围内。
A new numerical simulation approach is presented for calculating the heat loads of an anti-icing system. In the paper study, the CFD package FLUENT is used to perform the numerical simulation. Air-droplet multiphase flow is obtained using Eulerian multiphase model. The measure of the amount of droplets in the oncoming air that strike the aircraft and heat loads are obtained through the use of a user-defined function （UDF）. Results are graphically displayed as a post-processing step in FLUENT. This paper will present the results of air-droplet multiphase flow and heat loads of a 3D angle of attack sensor. The difference between the heat power and the experimental data is 7.5 % and in the range of permission.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2006年第2期208-212,共5页
Acta Aeronautica et Astronautica Sinica
