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Three-dimensional Simulation Research on Ice Shape at Engine Inlet Nacelle Front
Received date: 2012-04-09
Revised date: 2012-06-12
Online published: 2013-03-29
Supported by
"FanZhou" Youth Scientific Funds (20110503)
To simulate the ice shape at an engine inlet nacelle front, a pure three-dimensional ice accretion model based on Messinger's thermodynamic model is established, which took the surface runback water stream into consideration. Regarding the air friction as the main factor to drive the surface runback water stream, the shear force of the inlet surface is used to determine the direction and flow distribution of the runback water. To solve the ice accretion model of the water film, an approach of repeatedly searching the surface control volume condition is developed, which could achieve the calculation of the whole three-dimensional surface. Ice accretion calculation of a certain three-dimensional engine inlet is carried out, and the three-dimensional ice shapes are obtained. Comparison between the computational results and FESAP-ICE results indicates that the ice profiles of both methods are coincident approximately except for the difference at the ice horn location. The comparison results confirm the validity of the three-dimensional engine ice accretion model and the computational method, and the precision of the results is almost the same as that of the FENSAP-ICE software.
Key words: engine; three-dimensional simulation; ice shape; runback water; thermodynamic model
SHEN Xiaobin , LIN Guiping , BU Xueqin , YU Jia , HOU Panxue . Three-dimensional Simulation Research on Ice Shape at Engine Inlet Nacelle Front[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013 , 34(3) : 517 -524 . DOI: 10.7527/S1000-6893.2013.0087
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