Transonic flow calculations using triangular finite elements
作者： Richard B. Pelz , Antony Jameson
DOI: 10.2514/3.8952
关键词: Finite element method 、 Quadrilateral 、 Mathematics 、 Variational principle 、 Discretization 、 Geometry 、 Airfoil 、 Polygon 、 Applied mathematics 、 Transonic 、 Domain (mathematical analysis) 、 Aerospace engineering
摘要: Princeton University, Princeton, NJ This paper desribes a technique for finding the numerical solution of Full Potential equation steady transonic flow about airfoils. The exterior but finite domain is discretized by breaking it up into triangles. Difference equations are formulated using variational principle and formula derivative in an arbitrary polygon. iterative schemes include multigrid-AD1 structured grids modified checkerboard more grids. Results show consistency compare favorably with codes quadrilateral elements.
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