Based on the immersed boundary method,a numerical simulation for an oscillating airfoil is established and a preliminary analysis of the oscillating airfoil is presented with an emphasis on the physical understanding ...Based on the immersed boundary method,a numerical simulation for an oscillating airfoil is established and a preliminary analysis of the oscillating airfoil is presented with an emphasis on the physical understanding of fluid-structure interaction.In order to validate the method,two simulation cases:oscillating circular cylinder at low K-C number and two degrees of freedom oscillating cylinder are carried out first and the results are in good agreement with the previous researches.In the oscillating airfoil simulation,it is found that the reduced velocity U* is a very sensitive factor and especially U*～2.8 is the critical stable boundary in the present work.The method shows the predominance of time saving in computational process for such a complicated fluid-structure interaction problem.展开更多
基金the National Natural Science Foundation of China(Grant No.52022009)the Science Center for Gas Turbine Project of China(Grant No.P2022-A-II-003-001)+1 种基金Key Laboratory Foundation,China(Grant No.2021-JCJQ-LB-062-0102)the Fundamental Research Funds for the Central Universities of China.
基金supported by NSFC under grants 50736007 and 50136010
文摘Based on the immersed boundary method,a numerical simulation for an oscillating airfoil is established and a preliminary analysis of the oscillating airfoil is presented with an emphasis on the physical understanding of fluid-structure interaction.In order to validate the method,two simulation cases:oscillating circular cylinder at low K-C number and two degrees of freedom oscillating cylinder are carried out first and the results are in good agreement with the previous researches.In the oscillating airfoil simulation,it is found that the reduced velocity U* is a very sensitive factor and especially U*～2.8 is the critical stable boundary in the present work.The method shows the predominance of time saving in computational process for such a complicated fluid-structure interaction problem.
