Study of the boundary layer solution coupled with gridless method
Received:March 19, 2010  Revised:December 20, 2010
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DOI:10.7511/jslx20116018
KeyWord:gridless  Euler equations  AUSM+-up scheme  boundary layer solution
        
AuthorInstitution
盛鸣剑 上海飞机设计研究院, 上海
叶正寅 西北工业大学 翼型叶栅空气动力学国防重点实验室, 西安
蒋超奇 上海麟风风能科技有限公司, 上海
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Abstract:
      In this paper, a boundary layer solution coupled with gridless method is investigated. On the base of the distributed clouds of points, a least-squares fitting and the AUSM+-up scheme is used to obtain the numerical flux. An improved implicit algorithm is used to advanced the flow equations in time, at the same time local time stepping technique and residual averaging are employed, and coupled a boundary layer solution with gridless method. In order to demonstrate the accuracy and rudeness of the method, REA2822 aerofoil in transonic flow, NACA0012 aerofoil in transonic flow and M6 wing in transonic flow are computed. The result demonstrates that the gridless method in this paper can be used for the simulation of complex shape flow well.