防冰热载荷计算一种新方法_卜雪琴.pdfVIP

　27 　2 　　　 Vol.27 No.2 　2006 　　3 ACTA AERONAUTICA ET ASTRONAUTICA SINICA Mar. 　2006 　　:1000-6893(2006)02-020-8 05 , , , 　 ( , 　100083) New Method for Calculation of Ant-i icing Heat Loads BU Xue-in, LIN Gu-i ping, PENG You-xin, YU Jia (School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing　100083, China) 　:, CFD FLUENT UDF 。 FLUENT -, FLUENT , UDF , FLUENT 。 3D , -, 7.5%, 。 :;;FLUENT;UDF; + :V215. 5 1　　　:A Abstract:A new numerical simulation approach is presented for calculating the heat loads of an ant-i icing sy-s tem. In the paper study, the CFD package FLUEN T is used to perform the numerical simulation. Ai-r droplet multiphase f low is obtained using Eulerian multiphase model. The measure of the amount of droplets in the on- coming air that strike the aircraft and heat loads are obtained through the use of a use-r defined function (UDF). Results are graphically displayed as a pos-t processing step in FLUENT . This paper will present the results of ai-r droplet multiphase flow and heat loads of a 3D angle of attack sensor. The difference betw een the heat pow er and the experimental data is 7.5% and in the range of permission. Key words:ant-i icing heat load;multiphase f low ;FLUENT;UDF;numerical simulation [8] 　　, Euler - 。 , 。 4 , , 、, Euler-Lagrange , Euler [ 1] , Lagrange , 。 , 。 。, 。 , 2