Results 31 to 40 of about 225,512 (313)
On the accuracy of invariant numerical schemes
In this paper we present a method of construction of invariant numerical schemes for partial differential equations. The resulting schemes preserve the Lie-symmetry group of the continuous equation and they are at least as accurate as the original scheme.
Chhay, Marx, Hamdouni, Aziz
openaire +2 more sources
Simulations of Compressible, Diffusive, Reactive Flows with Detailed Chemistry Using a High-Order Hybrid WENO-CD Scheme [PDF]
A hybrid weighted essentially non-oscillatory (WENO)/centered-difference (CD) numerical method, with low numerical dissipation, high-order shock-capturing, and structured adaptive mesh refinement (SAMR), has been developed for the direct numerical ...
Ziegler, John Lewis (Jack)
core +1 more source
The article presents the mathematical modeling of heated gas dissociation process into the reservoir saturated with methane and its hydrate. We studied how different factors has affected the dissociation process.
N. G. Musakaev +2 more
doaj +1 more source
Trigonometrically Fitted Improved Hybrid Method for Oscillatory Problems
Presented in this paper is a trigonometrically fitted scheme based on a class of improved hybrid method for the numerical integration of oscillatory problems.
Yusuf Dauda Jikantoro +2 more
doaj +1 more source
Explicit Solution of the Time Domain Volume Integral Equation Using a Stable Predictor-Corrector Scheme [PDF]
An explicit marching-on-in-time (MOT) scheme for solving the time domain volume integral equation is presented. The proposed method achieves its stability by employing, at each time step, a corrector scheme, which updates/corrects fields computed by the ...
Bağcı, H +11 more
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The investigation of thermal transport in the nanofluid over a curved Riga surface is significant and extensively used in many industries as well as in engineering.
Adnan +6 more
doaj +1 more source
NUMERICAL OPTIMIZATION OF A MULTIPHYSICS CALCULATION SCHEME [PDF]
This work concerns the numerical optimization of a multiphysics calculation scheme. The considered application is a 5x5 Pressurized Water Reactor (PWR) assemblies mini-core surrounded by radial and axial reflectors. The scenario adopted for the analysis is steady-state nominal conditions and fission products set to the equilibrium concentration.
Cattaneo, Paolo +4 more
openaire +4 more sources
Low Mach Asymptotic Preserving Scheme for the Euler-Korteweg Model [PDF]
We present an all speed scheme for the Euler-Korteweg model. We study a semi-implicit time-discretisation which treats the terms, which are stiff for low Mach numbers, implicitly and thereby avoids a dependence of the timestep restriction on the Mach ...
Giesselmann, Jan
core +1 more source
gL1 Scheme for Solving a Class of Generalized Time-Fractional Diffusion Equations
In this paper, a numerical scheme based on a general temporal mesh is constructed for a generalized time-fractional diffusion problem of order α. The main idea involves the generalized linear interpolation and so we term the numerical scheme the gL1 ...
Xuhao Li, Patricia J. Y. Wong
doaj +1 more source
Numerical stabilization of the Stokes problem in vorticity–velocity–pressure formulation [PDF]
We work on a vorticity, velocity and pressure formulation of the bidimensional Stokes problem for incompressible fluids. In previous papers, the authors have developed a natural implementation of this scheme.
Salaün, Michel, Salmon, Stéphanie
core +1 more source

