Results 261 to 270 of about 238,118 (307)

Semi-analytical solutions for tubular chemical reactors

Chemical Engineering Science, 2017
The one-dimensional tubular reactor model with advection and possibly axial diffusion is the classical model of distributed chemical reaction systems. This system is described by partial differential equations that depend on the time t and the spatial coordinate z.
D. Rodrigues, J. Billeter, D. Bonvin
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Semi-analytical solution for orthotropic multiferroic laminates

2009 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA 2009), 2009
The dynamic responses of an orthotropic, multiferroic laminate in cylindrical bending are investigated based on the three dimensional equations. A semi-analytical approach, which makes a hybrid use of the method of state space method (SSM) and the differential quadrature method (DQM), is employed.
Yun-ying Zhou, Wei-qiu Chen, Chao-feng Lu   +2 more
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(Semi-)analytical solution of Luikov equations for time-periodic boundary conditions

International Journal of Heat and Mass Transfer, 2018
International audienceThe paper addresses the problem of coupled heat and moisture transfer in porous materials with the time-periodic boundary conditions applied.
Thibaut Colinart, Vincent Picandet
exaly   +2 more sources

SEMI-ANALYTICAL SOLUTIONS FOR THE BRUSSELATOR REACTION–DIFFUSION MODEL

The ANZIAM Journal, 2017
Semi-analytical solutions are derived for the Brusselator system in one- and two-dimensional domains. The Galerkin method is processed to approximate the governing partial differential equations via a system of ordinary differential equations. Both steady-state concentrations and transient solutions are obtained.
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A semi-analytical solution of Hunter–Saxton equation

Optik, 2016
Abstract In this paper, we discretize time derivative terms by a forward difference scheme and linearize the nonlinear terms using a quasilinearization technique to reduce the original equation into a system of ordinary differential equations. Then the Haar wavelet quasilinearization approach is applied to compute the numerical solutions of the ...
Somayeh Arbabi, Akbar Nazari, Mohammad Taghi Darvishi   +2 more
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A Semi-Analytical Solution of the Impedance-Wedge Problem

2021 International Conference on Electromagnetics in Advanced Applications (ICEAA), 2021
Diffraction of a plane electromagnetic wave by a wedge with infinite planar faces ( Fig. 1a ) is a key canonical problem of high-frequency diffraction and scattering theories, including Geometrical, Uniform and Physical Theories of Diffraction (GTD, UTD and PTD). The solution of the canonical problem improves the predictions of Geometrical and Physical
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Semi-Analytical Solution of Brent Equations

Doklady Mathematics
A parametrization of Brent equations is proposed which admit for a several times reduction of the number of unknowns and equations. The arising equations are solved numerically, and for the resulting fast matrix multiplication algorithms many known values of rank are reproduced and even improved, in particular, the designs (4,4,4;48) and (2,4,5;32) are
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New Semi-Analytical Solutions for Multilayer Reservoirs

CIPC/SPE Gas Technology Symposium 2008 Joint Conference, 2008
Abstract This paper presents the development, validation, and application of new approximate (semi-analytical) solutions for the wellbore pressure and fractional flowrate responses of commingled layered reservoirs — without interlayer cross/low (crossflow is only permitted in the wellbore, not in the reservoir).
E. P. Lolon, R. A. Archer, D. Ilk, T. A. Blasingame   +3 more
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Semi-analytical solution of consolidation for composite ground

Mechanics Research Communications, 2013
Abstract A number of consolidation solutions of composite ground which ignores the nonlinear character of soft soil and columns have been derived. In this paper, the e−log σ′ and e−log k relationship is used to describe the stress–strain and strain–permeability coefficient relationship of soft soil.
Chi Wang, Yongfu Xu
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Solute transport with multiprocess nonequilibrium: a semi-analytical solution approach

Journal of Contaminant Hydrology, 2000
A semi-analytical solution for the simulation of one-dimensional subsurface solute transport incorporating multiple nonequilibrium processes is presented. The solution is based on the theory developed by Brusseau et al. (1992) [Brusseau, M.L., Jessup, R.E., Rao, P.S.C., 1992.
Christopher J. Neville, Motomu Ibaraki, Edward A. Sudicky   +2 more
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