A New Numerical Method of Modeling Ice Accretion
In this paper, the commercial CFD code FLUENT has been used as the modeling framework of the numerical simulation with the ice accretion model incorporated in the form of User Defined Functions (UDFs). A DPM Define Macro is used to attain the parameters about droplet impingement, and another grid motion UDF is employed to define the boundary nodes movement The classical Messinger model is employed in the prediction of the accretion rate at each planeL To calculate the fraction of water that get into ice, a new approach is presented to take the runback water into account. In addition, the spring-based smoothing method is employed to calculate the domain nodes movement Finally, the ice profiles on the NACA0012airfoil is obtained at different ambient temperature to validate the proposed method. The simulation results, including the maximal and the limit are well in good agreement with the experiment Also, some discussions are presented about the collection efficiency and the mesh movement.
numerical simulation anti-icing ice accretion runback water mesh movement
Hu Jianping Liu Zhenxia Zhang Lifen
School of Power and Energy, Northwestern Polytechnical University, Xian 710072, China School of Power and Energy, Northwestern Polytechnical University, Xian 710072,China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
288-291
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）