Finite Volumes for Complex Applications II by Fayssal Benkhaldoun, Roland Vilsmeier

By Fayssal Benkhaldoun, Roland Vilsmeier

Benkhaldoun F., Vilsmeier R. (eds.) Finite Volumes for complicated functions II (Hermes technology guides, 1999)(ISBN 2746200570)

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We indeed have : P r o p o s i t i o n 2. z) The first order system (6) is hyperbolic in the phase space R and A ( u ) : R + M ~ ~ ( R admits P) the following three real eigenvalues : v - c, v , v + c, c2 = ( y p + yepe)lp, (14) + + where the eigenvalue v has an order of multiplicity ( n n v 1). i i ) Under standard thermodynamic assumptions, the fields associated with the eigenualues v f c are genuinely nonlinear. iii) The fields associated with the eigenvalue u are linearly degenerate. Their Riemann invariants are given by v and ( P ~ e ) .

H. I. Accurate Solution Algorithms for Incompressible Flows, 33rd Aerospace Sciences Meeting and Exhibit, January 9-12, 1995, Reno, NV [Rid 95/2 Rider and W. , Kothe, Stretching and Tearing Interface Tracking Methods, 12th AIAA CFD Conference, June 20, 1995, San Diego. Paper number AIAA-95-1717 [Rid 981 Rider, W. J . and Kothe, D. , Reconstructing Volume Tracking, Journal of Computational Physics, 141, 112-152, 1998 [Sch 981 Schneider, T, Botta, N , Geratz, K. J . html [Set 961 Sethian, J. , Smereka, P.

COT= cpi + aTf, where a? 2. Hyperbolic systems Considering now the non-commuting linear hyperbolic system the formal extension of the residual distribution discretization (3) is xi where the fluctuation @T is now a vector whose expression is aT= KiUi with Ki being now an inflow matrix expressed as Ki = Atni,e,and where is a distribution matrix. The design criteria for distribution matrices are the same as for distributioncoefficients for the scalar advection equation, plus the additional requirement of invariance under a similarity transformation, i.

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