Finite Difference Equation

Impact is an explicit Finite Element Program Suite which simulates dynamic impact events. It has a range of elements, contact handling and different material laws. Models can be created, solved and analyzed with the included pre- and postprocessor or wit Platforms: Windows, Mac, BSD, Linux

jFAST is a simple finite automata (FA) graphical simulation utility; it is designed to feature simple mechanisms for creating, editing, and simulating FA. jFAST is ideal for use by students, instructors, and self-guided explorers alike. Platforms: Windows, Mac, Linux

Develop finite element stress analysis programs, that work with free cad systems(Maybe QCad). Right now there's only a 2d gridded structure analysis prog with a crappy interface, written mainly in octave. Platforms: Windows, Mac, Linux

Tochnog is a finite element analysis program. It provides parallel and distributed solvers, 2D beams and trusses. The department of foundation engineering and tunneling of Ed. Zueblin A.G., Germany, sponsors the integration of hypoplasticity in Tochnog. A state-of-the-art version (automatic... Platforms: *nix, C/C++, BSD

C-Library & Matlab Toolbox implement a numerical solution of Poisson equationdiv(e*grad(u))=ffor Cartesian 1D, Cartesian 2D and axis-symmetrical cylindrical coordinates with respect to steeply varying dielectrical permittivity e.Library uses regular rectangular grid with mixed boundary... Platforms: Matlab

Flow past a wedge is governed by the Falkner-Skan equation. This equation admits only numerical solution, which requires the application of the shooting technique. The program plots the velocity for various wedge angles. The result obtained is in agreement with figure 8-10 in page 352 of Deen's... Platforms: Matlab

In the programs, we perform flash calculations of a mixture of hydrocarbons (ethane, propane, n-butane and n-pentane) using the Rachford-Rice equation. The phi-phi method, based on the SRK equation of state, is used to compute the equilibrium constants. We also find the True Vapor Pressure. All... Platforms: Matlab

We solve a binary distillation problem using the solution of a Riccati equation. We find that four plates are needed to achieve the desired product purity. We also compute the number of stages with the classical approach by stepping off stages using the equilibrium curve and the operating line.... Platforms: Matlab

The program 'Efinder' numerically solves the Schroedinger equation using MATLAB's 'ode45' within a range of energy values. By taking advantage of the dramatic endpoint behavior of the resulting wave solutions, 'Efinder' determines the eigen energies to any accuracy needed.This program has been... Platforms: Matlab

Emulate Babbage Difference Engine 2 at Mountain View Computer History Museum Program to emulate evaluation of 7th order polynomial with 31 digit accuracy for Difference Engine designed by Charles Babbage around 1830. Two versions of the engine were build in the 20th century by the London Science... Platforms: Matlab

The submission finds two parameters a_1 and a_2, coefficients belong to a linear equation of temperature, that minimize the difference between the pressures calculated by an equation of state and the experimental values at same temperature and volume conditions. Platforms: Matlab

C-Library & Matlab Toolbox implement a numerical solution of Poisson equationdiv(e*grad(u))=fin Cartesizan 3D coordinates with respect to steeply varying dielectrical permittivity e. Library uses regular rectangular grid with mixed boundary conditions, FVM-based equation discretization and... Platforms: Matlab

This set of simulations make use of the Alternating Direction Implicit method for solving the parabolic wave equation that arises in FD BPM.The zip file includes the following programs:FDBPM3D_free_space.m - Animation and video of the 3D propagation.FDBPM3D_free_space_slice.m - It shows slices of... Platforms: Matlab

This programs gives solution of 2nd order differential equation with variable coefficients by Rayleigh Ritz method using linear interpolation Platforms: Matlab

Two mass variable equations with "Aerospace 3Dof Simple Variable Mass Blockset" are compared in a 1Dof frictionless environment. Initial conditions are given in Model Callbacks.Results showed that "Aerospace 3Dof Simple Variable Mass Blockset" uses the incorrect equation. Platforms: Matlab

In the program, we obtain equilibrium constants, compressibility factors, molar volumes and densities using the Soave-Redlich-Kwong equation of state. We find the same results as those given by Henley and Seader in Equilibrium-Stage Separation Operations in Chemical Engineering, Wiley, 1981... Platforms: Matlab

The method uses finite differences to solve Laplace equation and matrix inversion to solve the resulting system of linear algebraic equations. The rectangular plate has both dimensions set equal to unity. Each dimension is discretized and the total number of nodal points is equal to 29*29. To... Platforms: Matlab

this is the first generation of the 'fig2real' programme. i will modify it and upload it again.this programme used to get the plynomial equation of curve drawn on picture.....thanks mathwork Platforms: Matlab

In this paper i try to associate a linear dynamical system dX/dt=AX to the PDE wave equation.So i discretize the space to step h,and set the limited develpment.it is well application also for spherical wave.J.C Willems gives good standing from ODE to PDE,and From PDe to ODE. Platforms: Matlab

In this code,we are concerned with the numerical minimization of energy functionals in Hilbert Space involving total variation for gray-scale 1-dimensional inpainting problem.Applications are shown by finite element method. Platforms: Matlab