M. Ismail and Cao Yihua and Zhao Ming and Abu Bakar
Numerical Study of Airfoils Aerodynamic Performance in Heavy Rain Environment
1342 - 1349
2012
6
7
International Journal of Aerospace and Mechanical Engineering
https://publications.waset.org/pdf/4345
https://publications.waset.org/vol/67
World Academy of Science, Engineering and Technology
Heavy rainfall greatly affects the aerodynamic performance of the aircraft. There are many accidents of aircraft caused by aerodynamic efficiency degradation by heavy rain.
In this Paper we have studied the heavy rain effects on the aerodynamic efficiency of cambered NACA 64210 and symmetric
NACA 0012 airfoils. Our results show significant increase in drag and decrease in lift. We used preprocessing software gridgen for creation of geometry and mesh, used fluent as solver and techplot as postprocessor. Discrete phase modeling called DPM is used to model the rain particles using two phase flow approach. The rain particles are assumed to be inert.
Both airfoils showed significant decrease in lift and increase in drag in simulated rain environment. The most significant difference between these two airfoils was the NACA 64210 more sensitivity than NACA 0012 to liquid water content (LWC). We believe that the results showed in this paper will be useful for the designer of the commercial aircrafts and UAVs, and will be helpful for training of the pilots to control the airplanes in heavy rain.
Open Science Index 67, 2012