Results 231 to 240 of about 2,433 (265)

Implicit kinetic schemes for the Euler equations

International Journal for Numerical Methods in Fluids, 2003
AbstractRecently, the kinetic schemes, namely the kinetic flux‐vector split (KFVS) scheme and kinetic wave/ particle split (KWPS) scheme, for Euler flows have gained wide recognition for their efficiency and robustness. However, to date, all computations performed with these schemes have employed a time‐explicit formulation.
Reksoprodjo, H. S. R., Agarwal, R. K.
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Implicit Euler scheme for an abstract evolution inequality

Differential Equations, 2011
For a triple {V, H, V*} of Hilbert spaces, we consider an evolution inclusion of the form u′(t)+A(t)u(t)+δφ{symbol}(t, u(t)) ∋f(t), u(0) = u0, t ∈ (0, T ], where A(t) and φ{symbol}(t, ·), t ∈ [0, T], are a family of nonlinear operators from V to V * and a family of convex lower semicontinuous functionals with common effective domain D(φ{symbol}) ⊂ V ...
Dautov R., Mikheeva A.
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Euler equations - Implicit schemes and boundary conditions

AIAA Journal, 1983
Implicit boundary condition procedures are presented for use with implicit finite difference schemes for the unsteady Euler equations. This new boundary point treatment is based on the mathematical theory of characteristics for hyperbolic systems of equations.
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Coarse grid correction scheme for implicit multiblock Euler calculations

AIAA Journal, 1995
Summary: A coarse grid correction scheme is used to bring global influence to implicit multiblock calculations. Compared to using only explicit coupling between the blocks, a considerable reduction in the number of time steps needed to reach steady state has been observed for transonic and subsonic flows.
Jenssen, Carl B., Weinerfelt, Per Å.
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Implicit schemes for unsteady Euler equations on triangular meshes

International Journal for Numerical Methods in Fluids, 1994
AbstractAn implicit finite element method is presented for the solution of steady and unsteady inviscid compressible flows on triangular meshes under transonic conditions. The method involves a first‐order time‐stepping scheme with a finite element discretization that reduces to central differencing on a rectangular mesh.
Sens, A. S., Mortchelewicz, G. D.
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Multigrid solution of the Euler equations using implicit schemes

AIAA Journal, 1985
On utilise une methode multigrille du type factorisation approchee couplee a un schema de direction alternee implicite pour resoudre les equations d'Euler pour l'ecoulement transsonique sur un profil aerodynamique.
A. JAMESON, S. YOON
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Implicit Kinetic Schemes for the Euler and the Ideal Magnetohydrodynamics Equations

41st Aerospace Sciences Meeting and Exhibit, 2003
The implicit kinetic schemes, namely the Kinetic Flux-Vector Split (KFVS) and the Kinetic Wave/Particle Split (KWPS) schemes are derived for the Euler and the ideal MHD equations. The schemes are applied to compute the flow in a 1-D shock-tube and the 2-D flowfield due to a cylindrical explosion with and without the magnetic field.
Ramesh K. Agarwal, H. S. R. Reksoprodjo
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Multiple-gridding of the Euler equations with an implicit scheme

6th Computational Fluid Dynamics Conference Danvers, 1983
The multiple-grid scheme of Ni (1981) for the solution of the unsteady Euler equations for quasi-one-dimensional transonic flow problems is analyzed according to its ability to accelerate convergence to a steady state solution, its applicability to an implicit scheme, its accuracy, and its stability limits.
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Euler implicit/explicit iterative scheme for the stationary Navier–Stokes equations

Numerische Mathematik, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Well-Balanced Time Implicit Formulation of Relaxation Schemes for the Euler Equations

SIAM Journal on Scientific Computing, 2008
We show how to derive time implicit formulations of relaxation schemes for the Euler equations for real materials in several space dimensions. In the fully time explicit setting, the relaxation approach has been proved to provide efficient and robust methods.
Christophe Chalons, Frédéric Coquel, Claude Marmignon   +2 more
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