An Immersed Boundary Method Based on Volume Fraction

摘要：

　　The immersed boundary method(IBM)was rapid developed in recent years,because of the ability for the complex configurations and moving bodies simulations.Most of the research on the IBM were focused on the low Mach number flow,few researchers applied this method to the high Mach number flow problems.A new IB method developed in current paper,which applied the volume fraction to get the cut cell average variables.The values of the variables in the cells that located in the body was determined by the ghost cell method,and the value located in the flow field were gained by power law interpolation.The cases that transonic flow round airfoil and Ma 1.3 shock wave cross wedge were simulated,which showed that the new method could captured the shock wave,expansion wave,shock-vortex interaction,shock reflection,and this method is suitable for the highspeed flow problems.

关键词： Immersed Boundary Method Power-law interpolation Volume fraction Direct forcing method

作者: Yuelong He Dun Li Shuai Liu Handong Ma

作者单位: China Academy of Aerospace Aerodynamics,Beijing,100074,P.R. China

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-8

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）