Description: FDTD一维程序，可以帮助大家建立一维模型，并输入参数运行。比如传输线、同轴线及平面波的设置及模拟都可以采用这个程序解决问题，尤其是给出了边界的设置方法。-FDTD a peacekeeping process, we can help build a dimensional model and input parameters operation. For example, transmission lines, coaxial line and plane wave configuration and simulation can make use of this procedure to solve the problem, especially given the boundary configuration. Platform: |
Size: 2048 |
Author:张洪欣 |
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Description: This program incorporates the FV method for solving the Navier-Stokes equations using 2D, Cartesian grids and the staggered arrangement of variables. Variables are stored as 2D arrays. SIMPLE method is used for pressure calculation. UDS and CDS are implemented for the discretization of convective terms, CDS is used for the diffusive terms. The boundary conditions are set for the lid-driven cavity flow. Only steady flows are considered. Platform: |
Size: 19456 |
Author:Maged |
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Description: Madsen 和 Grant 的波浪边界层Fortran源代码，很经典的，花了好长时间才找到，希望朋友们喜欢-The wave boundary layer fortran code by Madsen and Grant, extremely classic and takes me lots of time to get it. Platform: |
Size: 19456 |
Author:laofang |
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Description: 关于最新的边界元快速算法的专著，提出了一种代数方法来加快边界元方程组的求解。值得一看。-Boundary Element Methods (BEM) play an important role in modern numer-
ical computations in the applied and engineering sciences. Such algorithms are
often more convenient than the traditional Finite Element Method (FEM),
since the corresponding equations are formulated on the boundary, and, there-
fore, a signifi cant reduction of dimensionality takes place. Especially when the
physical description of the problem leads to an unbounded domain, traditional
methods like FEM become unalluring Platform: |
Size: 10357760 |
Author:john thames |
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Description: Language and environment: Fortran 90
This is a sample program of The Decomposed element free Galerkin method compared with the finite difference method for elastic wave propagation, by Katou, M., Matsuoka, T., Mikada, H., Sanada, Y. and Ashida, Y.
Here, we provide a sample code of the DEFGM (Decomposed Element Free Galerkin Method). The flow chart of the sample program defgm.f90 is described in Figure 4. It computes Rayleigh wave in section 7. The four side of calculation space is the free surface and there is no absorbing boundary.
This document shows how to use our sample program and change variables. -The decomposed element-free Galerkin (DEFG) method is a highly accurate method for solving elastic wave-equation problems. Platform: |
Size: 2172928 |
Author:蒋礼 |
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Description: Lattice Boltzmann 模拟流体流动，采用了Zou and He 的边界条件。-Lattice Boltzmann simulation of fluid flow, using Zou and He boundary conditions. Platform: |
Size: 53248 |
Author:马小熊 |
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Description: 边界元编程方法，其中包括具体算例及源程序-Boundary element programming methods, including specific examples and source code Platform: |
Size: 5345280 |
Author:车宇 |
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Description: 一个解常微分边值问题的高端求解器，可以解显式表达的微分方程组，且此微分方程组的每一个方程可以容许4阶的微分。长于解非线性的奇异问题。内附论文。程序自带说明和算例。-Automatic Continuation With Collocation.
This Package Solves `Stiff Boundary Value Problems For Ordinary Differential Equations By Using Continuation, As Described Below.
Colmod Is A Revised Version Of The Package Colnew By Ascher And Bader [2], Which In Turn Is A Modification Of The Package Colsys By Ascher, Christiansen And Russell [1]. Colmod Has Been Adapted To Allow An Automatic Continuation Strategy To Be Used. The Mesh Selection Algorithm Used In Colmod Differs From That Used In Colnew. Platform: |
Size: 246784 |
Author:刘项 |
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Description: Fortran77编写而成。基于连续的原理解决stiff两点边值常微分问题，是由Cash改编自TWPBVP程序。
内有说明，算例和参考信息，并且附有stiff问题的一些结果。-Automatic Continuation with Deferred Corrections
The package ACDC (which is written in FORTRAN 77) is designed to solve stiff two-point boundary value
problems for ordinary di erential equations by using continuation. We note that ACDC is a modiffcation of the package TWPBVP of Cash and M. H. Wright and that many of the original
subroutines used in TWPBVP remain unchanged in the new code. ACDC has been adapted to allow
an automatic continuation strategy to be used. Furthermore, the new code incorporates implicit
Runge-Kutta formulae, based on Lobatto points,rather than the mono-implicit formulae used in
the original code. This code is a companion to the continuation code COLMOD, which implements
our continuation strategy together with a high-order collocation method. Platform: |
Size: 270336 |
Author:刘项 |
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Description: 有数值计算中常用的Visual Fortran子过程近200个，内容包括：解线性代数方程组、插值、数值积分、特殊函数、函数逼近、随机数、排序、特征值问题、数据拟合、方程求根和非线性方程组求解、函数的极值和最优化、傅里叶变换谱方法、数据的统计描述、解常微分方程组、两点边值问题的解法和解偏微分方程组，每一个子程序都包括功能、方法、使用说明、子程序和例子五部分。本书的所有子过程都在Visual Fortran 5.0版本上进行过验证，程序都能正确运行。同时配书发行光盘，包括所有子过程、验证过程及所有验证过程的Visual Fortran工程项目。本书可供大专院校师生和科研院所、工矿企业的工程技术人员使用-A numerical calculation in Visual Fortran subroutines used nearly 200, including: the solution of linear algebraic equations, interpolation, numerical integration, special functions, function approximation, random numbers, sorting, eigenvalue problem, the data fitting equation to root and nonlinear equations, functions and extremal optimization, Fourier spectral method, statistical description, solution of ordinary differential equations, two boundary value problems solution reconciliation partial differential equations, each subroutine include features, methods, instructions, subroutines and examples of five parts. Book of all sub-processes in Visual Fortran 5.0 versions on proven, the program can run correctly. CD-ROM with the book release at the same time, including all sub-processes, the verification process and all of the verification process Visual Fortran project. Book for teachers and students of universities and research institutes, industrial and mining engineering and techni Platform: |
Size: 7149568 |
Author: |
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Description: 使用FORTRAN编写的三个程序，程序一和二可以计算二维平板的导热，程序一给定温度条件，程序二给定边界热流，程序三维方形管内流体对流换热。-Use three programs written in FORTRAN, the program I and II can calculate the thermal conductivity of two-dimensional flat, procedures, conditions for a given temperature, the program two given boundary heat flux, the program three-dimensional convective heat transfer fluid inside the square tube. Platform: |
Size: 3072 |
Author:cestbin |
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Description: 求解Helmholtz方程二维，报告内边界元和外边界元fortran程序-Solving Helmholtz square 程二维, the report boundary element and the outer boundary element fortran program Platform: |
Size: 54272 |
Author:hewenyun |
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Description: 求解声学边界元方程，三维，fortran经典程序，包括外边界元和内边界元-Solving acoustic BEM equations, three-dimensional, fortran classic procedures, including those outside the boundary element and boundary element Platform: |
Size: 54272 |
Author:hewenyun |
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Description: 海洋大地电磁二维OCCAM尖锐边界反演程序。-Sharp boundary OCCAM2D MT Inversion
Catherine de Groot-Hedlin and Steve Constable
This code is not part of the Version 3.0 f90 distribution, but is Catherine s original f77 distribution.
Fortran Source Code: Platform: |
Size: 437248 |
Author:李建平 |
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Description: mpi fortran wave equation solver code
!cc MAIN is the main program for WAVE_MPI.
!c
!c Discussion:
!c
!c WAVE_MPI solves the wave equation in parallel using MPI.
!c
!c Discretize the equation for u(x,t):
!c d^2 u/dt^2 - c^2 * d^2 u/dx^2 = 0 for 0 < x < 1, 0 < t
!c with boundary conditions:
!c u(0,t) = u0(t) = sin ( 2 * pi * ( 0 - c * t ) )
!c u(1,t) = u1(t) = sin ( 2 * pi * ( 1 - c * t ) )
!c and initial conditions:
!c u(x,0) = g(x,t=0) = sin ( 2 * pi * ( x - c * t ) )
!c dudt(x,0) = h(x,t=0) = - 2 * pi * c * cos ( 2 * pi * ( x - c * t ) )
!c
!c by:
!c
!c alpha = c * dt / dx.
!c
!c U(x,t+dt) = 2 U(x,t) - U(x,t-dt)
!c + alpha^2 ( U(x-dx,t) - 2 U(x,t) + U(x+dx,t) ).
!c
!c Licensing:
!c
!c This code is distributed under the GNU LGPL license.
!c
!c Modified:
!c
!c 17 November 2013
!c
!c Author:
!c
reza-mpi fortran wave equation solver code
!cc MAIN is the main program for WAVE_MPI.
!c
!c Discussion:
!c
!c WAVE_MPI solves the wave equation in parallel using MPI.
!c
!c Discretize the equation for u(x,t):
!c d^2 u/dt^2 - c^2 * d^2 u/dx^2 = 0 for 0 < x < 1, 0 < t
!c with boundary conditions:
!c u(0,t) = u0(t) = sin ( 2 * pi * ( 0 - c * t ) )
!c u(1,t) = u1(t) = sin ( 2 * pi * ( 1 - c * t ) )
!c and initial conditions:
!c u(x,0) = g(x,t=0) = sin ( 2 * pi * ( x - c * t ) )
!c dudt(x,0) = h(x,t=0) = - 2 * pi * c * cos ( 2 * pi * ( x - c * t ) )
!c
!c by:
!c
!c alpha = c * dt / dx.
!c
!c U(x,t+dt) = 2 U(x,t) - U(x,t-dt)
!c + alpha^2 ( U(x-dx,t) - 2 U(x,t) + U(x+dx,t) ).
!c
!c Licensing:
!c
!c This code is distributed under the GNU LGPL license.
!c
!c Modified:
!c
!c 17 November 2013
!c
!c Author:
!c
reza Platform: |
Size: 4096 |
Author:reza |
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Description: ABAQUS UEL自编二维fortran粘弹性边界单元,可用于动力计算，希望同行下载相互学习。-Abaqusuel zi fortran viscoelastic boundary element, can be used for dynamic calculation, hoping to download and learn each othe Platform: |
Size: 7168 |
Author:宋宏瑞 |
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Description: fortran编写的解二维椭圆方程程序，周期性边界条件，快速傅立叶变换和解三对角矩阵。-Solutions of two-dimensional elliptic equation written in Fortran program, periodic boundary conditions, a fast Fourier Transform and tridiagonal matrices. Platform: |
Size: 2048 |
Author:刘阳 |
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