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Selected topics in the theory and practice of computational fluid dynamics
KTH, School of Computer Science and Communication (CSC), Numerical Analysis, NA.
1987 (English)In: Journal of Computational Physics, ISSN 0021-9991, E-ISSN 1090-2716, Vol. 72, 1-69 p.Article in journal (Refereed) Published
Abstract [en]

Computational fluid dynamics (CFD) is a large branch of scientific computing that lately has undergone explosive growth. It draws upon elements from related disciplines: fluid mechanics, numerical analysis, theory of partial differential equations, computer science, and computational geometry. By selecting certain topics we try to trace the way the dramatic growth came about and to illustrate the interplay of the related disciplines. The scope is broad and the emphasis is on discussing the underlying fundamentals in order to present an overall perspective on CFD. The focus is on the evolution of nonsmooth features in inviscid flows, primarily macroscale discontinuities like shock waves and vortex sheets admitted as solutions to the Euler equations, but also with some view to their possible unstable progression into small-scale features, ending ultimately in turbulence. Some of the current finite-difference methods, and the theory they are based upon, which are used to treat these problems are reviewed, and different grid generation techniques are introduced. Together with some principles for using advanced supercomputers, we also discuss how the methods are implemented on these machines. A number of computed results, some of them new and of large scale with up to one million grid points, are presented which reflect the limits of the theory and the current status of the field.

Place, publisher, year, edition, pages
1987. Vol. 72, 1-69 p.
National Category
Computer and Information Science
URN: urn:nbn:se:kth:diva-90507DOI: 10.1016/0021-9991(87)90072-6OAI: diva2:505748
Proceeding of Conference on Nonlinear hyperbolic problems
NR 20140805Available from: 2012-02-24 Created: 2012-02-24Bibliographically approved

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Engquist, Björn
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