Results 271 to 280 of about 8,388,417 (298)

Data-parallel total variation diminishing method for sonic boom calculations

Journal of Aircraft, 1996
Sonic boom predictions are shown for the near and midfield and comparisons are made with experimental data. The computations are performed on the Thinking Machines' CM-5 massively parallel supercomputer to utilize its large available memory and high floating point performance.
Anthony R. Pilon, Anastasios S. Lyrintzis   +1 more
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Assessment of total variation diminishing schemes in compressible mixing flow computations

AIAA Journal, 1992
Numerical simulations of temporally developing mixing layers using high-resolution total variation diminishing (TVD) schemes have been carried out to investigate the effects of grid resolution and inherent scheme dissipation on the solution quality.
Pong-Jeu Lu, Kuen-Chuan Wu
openaire   +1 more source

Total Variation Diminishing technique in numerical simulation of Trichel corona in air

Journal of Electrostatics, 2017
Abstract This paper deals with the numerical simulation of the Trichel pulse corona discharge in air under the room temperature and atmospheric pressure in the pin-plane configuration. A simplified drift-diffusion model of the discharge is considered with three species: electrons, positive and negative ions.
Kazimierz Adamiak, Anatoly Malevanets
openaire   +1 more source

Solutions of hypersonic viscous flows with total variation diminishing multigrid techniques

Computers & Fluids, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Grasso, F., Marini, M.
openaire   +1 more source

Improved total variation diminishing schemes for advection simulation on arbitrary grids

International Journal for Numerical Methods in Fluids, 2011
SUMMARYThe requirements for flux limiter functions preserving total variation diminishing (TVD) are derived based on a 1D nonuniform grid, and a new TVD region is determined to fit arbitrary 1D grids. Some second‐order TVD schemes called improved TVD schemes are developed, such as modified Van Leer scheme, modified Van Albada scheme, and modified ...
Hou J, Simons F, Hinkelmann R
openaire   +2 more sources

Application of a total variation diminishing scheme to electromagnetic hybrid particle-in-cell plasma simulation

Computer Physics Communications, 2012
Abstract A discretization procedure for a total variation diminishing (TVD) scheme is introduced to an electromagnetic hybrid particle-in-cell (PIC) plasma simulation code in order to improve the numerical stability and resolution when calculating the plasma flow field in which magnetic field discontinuities (for example, Rankine–Hugoniot jump ...
Masaharu Matsumoto, Yoshihiro Kajimura, Hideyuki Usui, Ikkoh Funaki, Iku Shinohara   +4 more
openaire   +2 more sources

Multiblock implicit total variation diminishing solution of high-speed internal flows

Journal of Propulsion and Power, 1993
In this article a multiblock finite-volume technique with a second-order total variation diminishing spatial discretization and an efficient implicit time integration has been developed to simulate complex internal flows at high Mach numbers. This method employs a lower and upper approximate factorization of the implicit operator with symmetric ...
F. Grasso, M. Marini
openaire   +1 more source

Aerodynamic computations for a transonic projectile at angle of attack by total variation diminishing schemes

Journal of Spacecraft and Rockets, 1993
Several total variation diminishing (TVD) schemes and the Beam-Warming solution algorithm have been incorporated in a computer code for solving three-dimensional time-dependent , Reynold's averaged NavierStokes equations in generalized coordinates. A finite-volume fully implicit, approximately factored scheme is employed with a time-step convergence ...
Herng Lin, Ching-Chang Chieng
openaire   +1 more source

Implicit multigrid Euler solutions with symmetric Total-Variation-Diminishing dissipation

11th Computational Fluid Dynamics Conference, 1993
A symmetric Total-Variation-Diminishing (TVD) formulation of the numerical dissipation terms has been incorporated into a diagonalized alternating direction implicit multigrid algorithm to solve the Euler equations of inviscid compressible flow. The new treatment of the dissipation makes is possible to capture both very strong and very weak shocks ...
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A Total Variation Diminishing Hopmoc Scheme for Numerical Time Integration of Evolutionary Differential Equations

2018
This paper concentrates on a total variation diminishing Hopmoc scheme for numerical time integration of evolutionary differential equations. The Hopmoc method for numerical integration of parabolic partial differential equations with convective dominance is based on the concept of spatially decomposed meshes used in the Hopscotch method.
Diego N. Brandão, Sanderson L. Gonzaga de Oliveira, Mauricio Kischinhevsky, Carla Osthoff, Frederico Luís Cabral   +4 more
openaire   +1 more source