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Description: 本程序功能为计算一阶双曲型偏微分方程的初值问题,分别采用3种格式计算：1、迎风格式 2、Lax-Friedrichs格式 3、Lax-Wendroff格式-function of the procedures for calculating an order hyperbolic partial differential equation initial value problems were used to calculate three formats : 1, 2 upwind, the Lax - Friedrichs three format, Lax - Wendroff format
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Size: 43490 |
Author: Brad |
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Description: 本程序功能为计算一阶双曲型偏微分方程的初值问题,分别采用3种格式计算：1、迎风格式 2、Lax-Friedrichs格式 3、Lax-Wendroff格式-function of the procedures for calculating an order hyperbolic partial differential equation initial value problems were used to calculate three formats : 1, 2 upwind, the Lax- Friedrichs three format, Lax- Wendroff format
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Size: 220160 |
Author: Brad |
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Description: CFD各种差分格式,ENO/Lax-Friedriches/Beam-Worming/Lax实例-CFD various difference schemes, ENO/Lax-Friedriches/Beam-Worming/Lax examples
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Size: 5120 |
Author: lingenghao |
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Description: 求解粘性Burger方程和非粘性Burger方程的各种差分格式，包括BTCS格式的显式计算
BTCS格式的隐式计算
滞后非线性项
向前时间步长线性化
牛顿迭代法线性化
Lax-Wendroff格式
通量分裂格式显试计算
通量分裂格式隐式计算
CN格式隐式计算
等格式。-Solution of viscous Burger equation and non-viscous Burger differential equations of various formats, including formats BTCS Explicit calculation format BTCS implicit nonlinear calculation of lag time step forward in long-term nature of the linear Newton iteration of Lax-Wendroff significant flux splitting format format format tried calculating flux splitting implicit calculation CN implicit calculation format and other formats.
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Size: 8192 |
Author: 王磊 |
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Description: 迎风差分格式、lax-Wendroff差分格式等样例，还附有图形等-Upwind difference scheme, lax-Wendroff difference scheme, such as sample, but also with graphics, etc.
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Size: 2048 |
Author: Bruce |
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Description: fortran for desin home atleast
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Size: 1024 |
Author: rasool |
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Description: 用Lax-Friedrichs及Courant-Isaacson-Rees格式求解一阶双曲型方程。-With the Lax-Friedrichs and the Courant-Isaacson-Rees format for solving first order hyperbolic equation.
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Size: 1024 |
Author: 张少峰 |
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Description: 自己写了一个二维Euler方程的间断有限元程序
上次发了一个三角形单元的程序 因为不是曲边单元 所以在圆柱后面容易形成涡
现在把程序改为曲边四边形单元了 没有涡出现
单元是8节点四边形单元 节点编号顺序是 1 5 2 6 3 7 4 8 也就是四个角点依次
是1 2 3 4 然后是边的中点编号 5 6 7 8.
时间推进采用 Runge-Kutta 方法
数值通量采用全局Lax-Friedrichs通量
仍然不能捕捉激波 因为没有做重构或者加人工粘性 等这个做出来了 再发一次。
程序没有进行优化 比如说内存的消耗没有优化 比如直边单元的边界积分仍然采
用了曲边的积分方法 增加了计算量 比如面积分、线积分都是采用的是Gauss-
Legendre-Lobatto积分 积分精度会比一般的Gauss-Legendre积分精度低一阶 等
等问题。 二维的 纯属交流性质 就没有考虑这些问题 ^_^
如果物面全部是直边 那么只要改变一个参数N 就可以获得不同的计算精度 且具
有谱精度 因为单元的节点是Gauss-Legendre-Lobatto积分点。 其实就是谱元法
（物面是曲边的情况我不清楚是不是也可以通过提高基函数的阶数 也就是增加N
来提高计算精度）-Wrote a two-dimensional Euler equations with discontinuous finite element program
Last made a triangular element of the program, not curved edge unit is so easy to form a vortex in the cylinder behind the
Program to curved edge quadrilateral element vortices appear
Unit is the order of 8-node quadrilateral element node number is 15,263,748 which is the four corners of the points in turn
Is 1234 and then the side of the midpoint of the number 5678.
Time promote the use of Runge-Kutta method
Numerical flux of the overall situation of Lax-Friedrichs, flux
Still can not capture the shock wave did not do the reconstruction or artificial viscosity do it Zaifayici.
The program is not optimized for example, memory consumption is not optimized such as straight-edge boundary integral of the unit is still mining
Integral method to increase the amount of computation such as surface integral with a curved edge, the line integral using the Gauss-
The Legendr
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Size: 47104 |
Author: 刘刚 |
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Description: 微分方程课程设计 (双曲型方程数值解)一阶双曲型方程的差分格式 Lax_Wendroff，Lax-Friedrichs，Courant_Isaacson_Rees-Differential equations course (hyperbolic equations numerical solution) first-order hyperbolic equations, differential format Lax_Wendroff Lax-Friedrichs,, Courant_Isaacson_Rees
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Size: 530432 |
Author: 周明明 |
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Description: 基于matlab的，关于lax-wendroff,lax-friedrichs,一阶迎风格式，一阶warming-beam格式的计算流入门简单算例-simple examples of lax-wendroff, lax-friedrichs, first-order upwind, first-order warming-beam based on MATLAB.
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Size: 1024 |
Author: likan |
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Description: 本程序功能为计算一阶双曲型偏微分方程的初值问题,采用Lax-Friedrichs格式计算。-The program features to calculate the first order hyperbolic partial differential equations of the initial value problem, calculated using the Lax-Friedrichs format.
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Size: 1024 |
Author: 兰雪娇 |
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Description: Lax-Wendroff-upwind求解u_t+cu_x=0(Solves u_t+cu_x=0 by finite difference methods. Of interest are discontinuous initial conditions. The methods of choice are upwind, Lax-Friedrichs and Lax-Wendroff as linear methods, and as a nonlinear method Lax-Wendroff-upwind with van Leer and Superbee flux limiter.)
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Size: 1024 |
Author: lzm708
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Description: 一维欧拉方程计算，集合了Lax-Friedrichs，Richtmyer，MacCormack，Steger-Warming，Van Leer，AUSM，Zha-Bilgen，Godunov，Osher，Roe，Rusanov，HLL(HLLE)，HLLL，AUFS方法(One dimensional Euler equation, including Lax-Friedrichs, Richtmyer, MacCormack, Steger-Warming, Van Leer, AUSM, Zha-Bilgen, Godunov, Osher, Ro, Rusanov, HLL(HLLE), HLLL, AUFS)
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Size: 8192 |
Author: 黑狗子
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Description: 用Lax-Friedrichs格式求解波动方程的matlab程序。(The matlab program for solving wave equation by Lax-Friedrichs scheme.)
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Size: 11264 |
Author: 红尘道北 |
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