Results 41 to 50 of about 3,128,332 (289)

Playing with nonuniform grids [PDF]

open access: yes, 1992
Numerical experiments with discretization methods on nonuniform grids are presented for the convection-diffusion equation. These show that the accuracy of the discrete solution is not very well predicted by the local truncation error.
Rinzema, K.,   +5 more
core   +2 more sources

Trigonometrically Fitted Improved Hybrid Method for Oscillatory Problems

open access: yesComputer Sciences & Mathematics Forum, 2023
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

Numerical investigation of heat transfer in the nanofluids under the impact of length and radius of carbon nanotubes

open access: yesOpen Physics, 2022
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

A simple Cartesian scheme for compressible multimaterials [PDF]

open access: yes, 2014
We present a simple numerical method to simulate the interaction of two non-miscible compressible materials separated by an interface. The media considered may have significantly different physical properties and constitutive laws, describing for example
GORSSE, Yannick   +3 more
core   +1 more source

A comparison between analytic and numerical methods for modelling automotive dissipative silencers with mean flow [PDF]

open access: yes, 2009
Identifying an appropriate method for modelling automotive dissipative silencers normally requires one to choose between analytic and numerical methods.
Kirby, R
core   +6 more sources

gL1 Scheme for Solving a Class of Generalized Time-Fractional Diffusion Equations

open access: yesMathematics, 2022
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

On Numerical Analysis of Bio-Ethanol Production Model with the Effect of Recycling and Death Rates under Fractal Fractional Operators with Three Different Kernels

open access: yesMathematics, 2022
The main metabolism of yeasts produces bioethanol. Bioethanol, which is produced from biomass and bioenergy crops, has been promoted as one of the most viable alternatives to fossil fuels.
Rubayyi T. Alqahtani   +2 more
doaj   +1 more source

Dissipativity of numerical schemes [PDF]

open access: yesNonlinearity, 1991
The authors show that the way in which finite differences are applied to the nonlinear term in certain partial differential equations (PDES) can mean the difference between dissipation and blow up. For fixed parameter values and arbitrarily fine discretizations they construct solutions which blow up in finite time for two semi-discrete schemes.
C Foias   +3 more
openaire   +1 more source

A Higher-Order Numerical Scheme for Two-Dimensional Nonlinear Fractional Volterra Integral Equations with Uniform Accuracy

open access: yes, 2022
In this paper, based on the modified block-by-block method, we propose a higher-order numerical scheme for two-dimensional nonlinear fractional Volterra integral equations with uniform accuracy. This approach involves discretizing the domain into a large
Zi-Qiang Wang, Jun-Ying Cao, Qin Liu
core   +1 more source

Mathematical Modelling of Tuberculosis Outbreak in an East African Country Incorporating Vaccination and Treatment

open access: yesComputation, 2023
In this paper, we develop a deterministic mathematical epidemic model for tuberculosis outbreaks in order to study the disease’s impact in a given population.
Kayode Oshinubi   +9 more
doaj   +1 more source

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