| 期刊全稱 | Adaptive Finite Element Solution Algorithm for the Euler Equations | | 影響因子2023 | Richard A. Shapiro | | 視頻video | http://file.papertrans.cn/145/144646/144646.mp4 | | 學(xué)科分類 | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | | 圖書封面 |  | | 影響因子 | This monograph is the result of my PhD thesis work in Computational Fluid Dynamics at the Massachusettes Institute of Technology under the supervision of Professor Earll Murman. A new finite element al- gorithm is presented for solving the steady Euler equations describing the flow of an inviscid, compressible, ideal gas. This algorithm uses a finite element spatial discretization coupled with a Runge-Kutta time integration to relax to steady state. It is shown that other algorithms, such as finite difference and finite volume methods, can be derived using finite element principles. A higher-order biquadratic approximation is introduced. Several test problems are computed to verify the algorithms. Adaptive gridding in two and three dimensions using quadrilateral and hexahedral elements is developed and verified. Adaptation is shown to provide CPU savings of a factor of 2 to 16, and biquadratic elements are shown to provide potential savings of a factor of 2 to 6. An analysis of the dispersive properties of several discretization methods for the Euler equations is presented, and results allowing the prediction of dispersive errors are obtained. The adaptive algorithm is applied to t | | Pindex | Book 1991 |
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