Affiliation of Author(s):航空学院
Journal:Hangkong Dongli Xuebao
Abstract:A piezoelectric mono-dispersed droplet generator was designed to study the deformation of droplets under the aerodynamic force by the high speed imaging system. The non-spherical drag model was established for the deformed water droplets. The process of water droplets impinging on the NACA23012 airfoil was simulated while the breakup model and splash model were introduced into Eulerian model. The simulated results were compared with the results from traditional model. It was found that the drag coefficient of water droplets increased because of the deformation. When the Reynolds number was larger than 500, water drag coefficient curve broke away with the spherical drag curve gradually and grew close to the disc drag coefficient curve. The droplet trajectory was affected because of the change of the drop's drag properties, making the droplet follow with the air. The mass loss from splashing decreased the local collection coefficient on the airfoil, which was in good agreement with the experiment data. © 2018, Editorial Department of Journal of Aerospace Power. All right reserved.
ISSN No.:1000-8055
Translation or Not:no
Date of Publication:2018-03-01
Co-author:Liu, Senyun,Zhu Chunling,Wang, Qiao,Wang, Zixu,Xiao, Jingping,Zhang, Quan
Correspondence Author:Zhu Chengxiang
Date of Publication:2018-03-01