关键词: 防冰热载荷, 两相流, FLUENT, UDF, 数值模拟

Abstract: 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.

Key words: anti-icing heat load, multiphase flow, FLUENT, UDF, numerical simulation