Adaptive Finite Element Solution Algorithm for the Euler Equations by Richard A Shapiro

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Summary

It is shown that other algorithms, such as finite difference and finite volume methods, can be derived using finite element principles. Some issues in the design and implementation of adaptive finite element algorithms on vector and parallel computers are discussed.

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Adaptive Finite Element Solution Algorithm for the Euler Equations by Richard A Shapiro

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 the solution of several flows in scramjet inlets in two and three dimensions, demonstrat- ing some of the varied physics associated with these flows. Some issues in the design and implementation of adaptive finite element algorithms on vector and parallel computers are discussed.
SKU Unavailable
ISBN 13 9783528076320
ISBN 10 3528076321
Title Adaptive Finite Element Solution Algorithm for the Euler Equations
Author Richard A Shapiro
Series Notes On Numerical Fluid Mechanics And Multidisciplinary Design
Condition Unavailable
Binding Type Paperback
Publisher Friedrich Vieweg & Sohn Verlagsgesellschaft mbH
Year published 1991-01-01
Number of pages 166
Cover note Book picture is for illustrative purposes only, actual binding, cover or edition may vary.