云南高校图书馆联盟文献共享服务平台- CONVECTION-DIFFUSION

CONVECTION-DIFFUSION: 作品数：45被引量：41H指数：4; 导出分析报告; 相关领域：理学更多>>; 相关作者：高清勇谭宏更多>>; 相关机构：中国科学院研究生院重庆大学更多>>; 相关期刊：《Acta Mathematicae Applicatae Sinica》《Communications in Computational Physics》《Acta Mathematica Scientia》《Chinese Quarterly Journal of Mathematics》更多>>; 相关基金：国家自然科学基金更多>>

THE SUPERCLOSENESS OF THE FINITE ELEMENT METHOD FOR A SINGULARLY PERTURBED CONVECTION-DIFFUSION PROBLEM ON A BAKHVALOV-TYPE MESH IN 2D: 《Acta Mathematica Scientia》2024年第4期1572-1593,共22页Chunxiao ZHANG Jin ZHANG; supported by National Natural Science Foundation of China(11771257);the Shandong Provincial Natural Science Foundation of China(ZR2023YQ002,ZR2023MA007,ZR2021MA004)。; For singularly perturbed convection-diffusion problems,supercloseness analysis of the finite element method is still open on Bakhvalov-type meshes,especially in the case of 2D.The difficulties arise from the width of ...; 关键词：singularly perturbed CONVECTION-DIFFUSION finite element method SUPERCLOSENESS Bakhvalov-type mesh

Analytic Regularity for a Singularly Perturbed Reaction-Convection-Diffusion Boundary Value Problem with Two Small Parameters: 《Communications in Mathematical Research》2024年第2期125-153,共29页Irene Sykopetritou Christos Xenophontos; We consider a second order,two-point,singularly perturbed boundary value problem,of reaction-convection-diffusion type with two small parameters,and we obtain analytic regularity results for its solution,under the ass...; 关键词：Singularly perturbed problem reaction-convection-diffusion boundary layers analytic regularity.

ANALYSIS OF THE IMPLICIT-EXPLICIT ULTRA-WEAK DISCONTINUOUS GALERKIN METHOD FOR CONVECTION-DIFFUSION PROBLEMS被引量：1: 《Journal of Computational Mathematics》2024年第1期1-23,共23页Haijin Wang Anping Xu Qi Tao; Research sponsored by NSFC grants 11871428 and 12071214;Nature Science Research Program for Colleges and Universities of Jiangsu Province grant 20KJB110011;Research is supported in part by NSFC grants U1930402;the fellowship of China Postdoctoral Science Foundation(No.2020TQ0030).; In this paper,we first present the optimal error estimates of the semi-discrete ultra-weak discontinuous Galerkin method for solving one-dimensional linear convection-diffusion equations.Then,coupling with a kind of R...; 关键词：The ultra-weak discontinuous Galerkin method CONVECTION-DIFFUSION Implicitexplicit time discretization Stability Error estimate

An Interpolation-Free Cell-Centered Finite Volume Scheme for 3D Anisotropic Convection-Diffusion Equations on Arbitrary Polyhedral Meshes: 《Communications in Computational Physics》2023年第10期1277-1305,共29页Shuai Miao Jiming Wu Yanzhong Yao; partially supported by the National Natural Science Foundation of China(Nos.11871009,12271055,12171048);the foundation of CAEP(CX20210044);the Foundation of LCP.; Most existing cell-centered finite volume schemes need to introduce auxiliary unknowns in order to maintain the second-order accuracy when the mesh is distorted or the problem is discontinuous,so interpolation algorit...; 关键词：Interpolation-free finite volume scheme CONVECTION-DIFFUSION polyhedral mesh

Higher Order Implicit Scheme for Nonlinear Time-Dependent Convection-Diffusion- Reaction Equation: 《American Journal of Computational Mathematics》2022年第2期232-248,共17页Uzair Ahmed Daoud Suleiman Mashat Dalal Adnan Maturi; A mathematical model comprising of nonlinear reaction, diffusion, and convection mechanisms seen in natural and anthropogenic processes is numerically investigated here. It is proposed that a higher order numerical sc...; 关键词：Finite Difference Method (FDM) Crank-Nicholson (CN) Fourth Order Implicit (FOI) Convection-Diffusion-Reaction (CDR)

A Comparative Numerical Study of Parabolic Partial Integro-Differential Equation Arising from Convection-Diffusion: 《Computer Modeling in Engineering & Sciences》2021年第2期673-692,共20页Kamil Khan Arshed Ali Fazal-i-Haq Iltaf Hussain Nudrat Amir; This article studies the development of two numerical techniques for solving convection-diffusion type partial integro-differential equation(PIDE)with a weakly singular kernel.Cubic trigonometric B-spline(CTBS)functio...; 关键词：Partial integro-differential equation CONVECTION-DIFFUSION collocation method differential quadrature cubic trigonometric B-spline functions weakly singular kernel

Sensitivity of the half-life time of water exchange in coastal waters: 《Science China Earth Sciences》2019年第4期643-656,共14页Zhenhua CHEN Fangli QIAO Gang WANG Changshui XIA; supported by the NSFC-Shandong Joint Fund for Marine Science Research Centers(Grant No.U1406404);the Fundamental Research Funds for National Public Research Institutes of China(Grant No.2014T01);the National Program on Global Change and Air-Sea Interaction(Grant No. GASI-03-IPOVAI-05);supported by the AoShan Talents Program;the Qingdao National Laboratory for Marine Science and Technology(Grant No. 2015ASTP); A three-dimensional model was established to investigate water exchange in coastal waters, and applied to Qinzhou Bay(QZB) in the South China Sea. Given the strong tidal current in QZB, a half-life time was calculated...; 关键词：Sensitivity CONVECTION-DIFFUSION model Water exchange HALF-LIFE time Qinzhou BAY SOUTH China SEA

Lattice Boltzmann model of percutaneous drug absorption: 《Theoretical & Applied Mechanics Letters》2019年第1期1-6,I0006,共7页Arman Safdari Kyung Chun Kim; supported by the National Research Foundation of Korea(NRF)grant funded by the Korean government(MSIT)(2011-0030013 and 2018R1A2B2007117); A lattice Boltzmann numerical modeling method was developed to predict skin concentration after topical application of a drug on the skin. The method is based on D2Q9 lattice spaces associated with the Bhatnagar-Gross...; 关键词：Lattice BOLTZMANN method Bhatnagar-Gross-Krook (BGK) Single relaxation time ADVECTION-DIFFUSION CONVECTION-DIFFUSION equation (CDE)

Travelling Waves in Space-Fractional Nonlinear Diffusion with Linear Convection: 《Journal of Applied Mathematics and Physics》2017年第2期462-468,共7页Felix Silva Costa Marta Raquel Araujo Pereira; In this paper we investigate anomalous diffusion coupled with linear convection, using fractional calculus to describe the anomalous associated memory effects in diffusive term. We get an explicit travelling wave solu...; 关键词：FRACTIONAL CONVECTION-DIFFUSION RIESZ Derivative TRAVELLING Wave WAVEFRONT

Comparison of Fixed Point Methods and Krylov Subspace Methods Solving Convection-Diffusion Equations: 《American Journal of Computational Mathematics》2015年第2期113-126,共14页Xijian Wang; The paper first introduces two-dimensional convection-diffusion equation with boundary value condition, later uses the finite difference method to discretize the equation and analyzes positive definite, diagonally dom...; 关键词：Finite DIFFERENCE METHOD CONVECTION-DIFFUSION Equation DISCRETIZATION Matrix ITERATIVE METHOD CONVERGENCE Speed

CONVECTION-DIFFUSION