Results 61 to 70 of about 116,557 (189)
A parameter uniform fitted mesh method for a weakly coupled system of two singularly perturbed convection-diffusion equations [PDF]
, 2018 In this paper, a boundary value problem for a singularly perturbed linear system of two second order ordinary differential equations of convection- diffusion type is considered on the interval [0, 1]. The components of the solution of this system exhibit
Kalaiselvan, Saravana Sankar +2 more
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A two-dimensional problem of filtration theory
Vietnam Journal of Mechanics, 1985 The problem about free surface of ground Water flow is scaled Completely with considering the convection diffusion of soluble matter and the matter exchange with ground.
Dao Minh Ngoc
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3He-Driven Mixing in Low-Mass Red Giants: Convective Instability in Radiative and Adiabatic Limits
, 2008 We examine the stability and observational consequences of mixing induced by 3He burning in the envelopes of first ascent red giants. We demonstrate that there are two unstable modes: a rapid, nearly adiabatic mode that we cannot identify with an ...
Chaboyer B. +14 more
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Complexity, 2018 Based on the heterogeneous multiscale method, this paper presents a finite volume method to solve multiscale convection-diffusion-reaction problem. The paper constructs an algorithm of the optimal order convergence rate in H1-norm under periodic medias.
Tao Yu, Peichang Ouyang, Haitao Cao
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Mathematics, 2020 The main focus of this study was to develop a numerical scheme with new expressions for interface flux approximations based on the upwind approach in the finite volume method.
Arafat Hussain +2 more
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Hybridized discontinuous Galerkin method for convection–diffusion problems [PDF]
Japan Journal of Industrial and Applied Mathematics, 2014 In this paper, we propose a new hybridized discontinuous Galerkin (DG) method for the convection-diffusion problems with mixed boundary conditions. A feature of the proposed method, is that it can greatly reduce the number of globally-coupled degrees of freedom, compared with the classical DG methods.
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A cost-effective strategy for nonoscillatory convection without clipping [PDF]
, 1990 Clipping of narrow extrema and distortion of smooth profiles is a well known problem associated with so-called high resolution nonoscillatory convection schemes.
Leonard, B. P., Niknafs, H. S.
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Exergy Optimization of a Moving Bed Heat Exchanger [PDF]
, 2007 The MBHE proposed can be analyzed as a crossflow heat exchanger where one of the phases is a moving granular medium. In the present work the exergy analysis of the MBHE is carried out over operation data of the exchanger obtained in two ways: a numerical
Almendros Ibáñez, José Antonio +6 more
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OPTIMAL CONTROL OF A CONVECTIVE-DIFFUSIVE FLUID PROBLEM [PDF]
Mathematical Models and Methods in Applied Sciences, 1995 We consider optimal control of a parabolic differential equation, modeling one-dimensional fluid flow through a soil-packed tube in which a contaminant is initially distributed. A fluid is pumped through the tube to remove the contaminant. The convective velocity due to the fluid pumping is the nonlinear control action.
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Domain decomposition algorithms and computation fluid dynamics [PDF]
In the past several years, domain decomposition was a very popular topic, partly motivated by the potential of parallelization. While a large body of theory and algorithms were developed for model elliptic problems, they are only recently starting to be ...
Chan, Tony F.
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