THE AERODYNAMIC ANALYSIS AND NUMERICAL SIMULATION FOR FLUTTERING AND TUMBLING PLATES
The motion of a plate in fluid is investigated by introducing a new aerodynamic model. The numerical method coupling the three degrees of freedom flight mechanics equations and the two-dimensional incompressible Navier-Stokes equations is developed which could be used to predict the fluttering and tumbling characteristics of a free falling, twodimensional flat plate. In the case of two or more plates in fluid area, a stochastic collision model is established to investigate the impact among plates. The trajectory of a free falling autorotating plate is given by solving the system of equations describing the flight mechanics. The computational results of collision model reveal the aerodynamic interferential elements among plates. This method provides a new approach to solve the ordinary probleM that two-dimensional objects fall in fluid at an angle of attack and could be applied in project fields widely.
HUANG Bei WANG Hao WANG Shan-shan TAO Ru-yi
School of Power Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
414-421
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）