Results 261 to 270 of about 8,388,417 (298)

On Total Variation Diminishing Schemes for Pressure Transients

Journal of Energy Resources Technology, 1999
A higher-order numerical procedure is applied to simulate typical transient phenomena in natural gas transportation. Reliable modeling and prediction of transients features in transmission pipelines are desirable for optimal control of gas deliverability, design and implementation of active controls, and modeling of operational behavior of network ...
S. O. Ibraheem, M. A. Adewumi
openaire   +1 more source

Locally implicit total-variation-diminishing schemes on unstructuredtriangular meshes

AIAA Journal, 1991
Summary: A numerical solution procedure that includes locally implicit total- variation-diminishing schemes and adaptive mesh generation techniques has been developed in this work. In a Cartesian coordinate system, the Euler equations are solved by using a cell-centered finite volume algorithm.
Hwang, C. J., Liu, J. L.
openaire   +1 more source

Conditions for the construction of multi-point total variation diminishing difference schemes

Applied Numerical Mathematics, 1986
Conditions are derived for the construction of total variation diminishing difference schemes with multipoint support. These conditions, which are proved for explicit, implicit, and semi-discrete schemes, correspond in a general sense to the introduction of upwind biasing.
Jameson, Antony, Lax, Peter D.
openaire   +2 more sources

Application of Total Variation Diminishing for 1D Nozzle Problem

Applied Mechanics and Materials, 2013
Computational fluid dynamics (CFD) is very widespread use every day as a tool in fluid flow analyses. In order to solve the Partial Differential Equation (PDE), there are few approach been introduced. The total variation diminishing (TVD) is a most popular scheme which is usually used in combination with other scheme. Therefore, this study develops CFD
Fatimah Yusop, Bambang Basuno, Zamri Omar   +2 more
openaire   +1 more source

Total variation diminishing and mass conservative implementation of hydrological flow routing

Journal of Hydrology, 2016
Summary Hydrological flow routing methods are widely used as components of distributed hydrological models and in operational flow forecasting systems. The paper presents a novel approach to reformulate several of these routing schemes as a cascade of implicit pool routing models.
Schwanenberg, Dirk, Alvarado Montero, Rodolfo   +1 more
openaire   +1 more source

Lower upper implicit total variation diminishing solution of viscoushypersonic flows

AIAA Journal, 1992
Summary: An efficient implicit LU-TVD scheme is developed to solve the two- dimensional Navier-Stokes equations. The scheme uses a lower and upper approximate factorization of the implicit operator and has been applied to a viscous high-speed flow problem for validation purposes.
Grasso, F., Marini, M.
openaire   +1 more source

Efficient, robust second-order total variation diminishing scheme

AIAA Journal, 1996
We report our past experiences on the use of implicit secod-order TVD schemes associated with three flux limiters in calculations of the Euler equations for various compressible flow problems.
Liang, S.-M., Tsai, C.-J., Wu, L.-N.
openaire   +2 more sources

Assessment of Total Variation Diminishing schemes in combustion instability problems

31st Aerospace Sciences Meeting, 1993
Numerical simulations of acoustic waves in a shear layer and in an idealized combustion chamber using high resolution Total Variation Diminishing (TVD) schemes has been carried out to study the effects of inherent scheme dissipation and dispersion errors of this class of problems.
Z. WANG, H. YANG, A. PRZEKWAS
openaire   +1 more source

Total Positivity and Variation Diminishing Transformations

1988
I. J. Schoenberg has made outstanding mathematical contributions in several areas of analysis. In particular, he fathered the subject of total positivity and continuously nurtured it with highly original and versatile research for more than five decades.
openaire   +1 more source

Application of a generalized total variation diminishing algorithm to cosmic ray transport and acceleration

Computer Physics Communications, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nutaro, T., Riyavong, S., Ruffolo, D.
openaire   +1 more source