This paper uses SJTUICE (Shanghai Jiao Tong University Icing Simulation Code) method of prediction and develops method for the aerodynamic analysis on highlift configurations. After validating the supercooled large droplet (SLD), particle trajectory and icing prediction on multielement airfoils, this paper characterizes the SLD icing accretions and aerodynamic effects on highlift configurations and compares them with nonSLD conditions. The result indicates that the quantity of ice increases, and the upwind horn on the suctionside of the slat grows lager and extends downstream under SLD condition. It is remarkable to detect that the SLD condition induces the large increment of horn ice on leading edge of flap. The ice shape has a larger growth angle that is about to lead to the clogging of the gap. With the angle of attack ranging from 6° to 22°, the SLD condition has a larger degradation on the aerodynamic performance comparison with nonSLD condition. It leads to the decreasing of lift coefficient by 63.5% and causes stall to occur 8° earlier.
LI Dong1,ZHANG Chen1,WANG Fuxin1,LIU Hong1,YANG Kun2
. An Investigation on the Characteristics of Supercooled Large
Droplet Icing Accretions and Aerodynamic Effects on
HighLift Configuration[J]. Journal of Shanghai Jiaotong University, 2017
, 51(8)
: 921
-931
.
DOI: 10.16183/j.cnki.jsjtu.2017.08.005
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