Finite Differences Method

Python Stencil Environment also know as PySE is a new python library for solving Partial Differential Equations with the Finite Difference Method (FDM). This is still a quite new library, and the current release must be considered as beta software. It is quite rough around the edges,... Platforms: *nix

The tool box provides the procedure to calculate all band edge energies and corresponding wavefunctions in single quantum square well using Finite Element Method. Platforms: Matlab

The function nonlinearBVP_FDM .m is an implementation of thenonlinear finite difference method for the general nonlinearboundary-value problem --------------------------------------------- y''=f(x,y,y'), for a> Y = nonlinearBVP_FDM(1,3,17,43/3);Note that Y(:,1) represents x and Y(:,2) is vector... Platforms: Matlab

Software to paper (please cite when using the software)Leszek Marcinkowski, Talal Rahman and Jan Valdman,A 3D Crouzeix-Raviart mortar finite element.Computing 86, No. 4, 313-330 (2009)download: http://www.springerlink.com/content/p8nx4573480hm98h/?p=31e284c1655141f691369102e361c9a4&pi=1This... Platforms: Matlab

A simple partial differential equation (PDE) with boundary conditions is examined:d/dx( x dy/dx ) = xy(0) = y(1) = 0.Integrate the PDE twice to get its solution. Then apply the boundary conditions and get a contradiction. The boundary value problem(BVP)has no solution.Regardless, apply the finite... Platforms: Matlab

Simulation of a gaussian pulse propagated in free space through 1000 um, using finite differences.Just run the script and you'll get a surface which is made up of the pulse propagated at 1 um steps. 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

Study of heat transfer and temperature of a 1x1 metal plateheat is dissipated through the left right and bottom sides and emp at infinity is t n(n-1) points in consideration,Temperature at top end is 500*sin(((i-1)*pi)/(n-1)A*Temp=U where A is coefficient matrix and u is constant matrixfinite... Platforms: Matlab

Matlab files include Gaussian numerical quadrature, Newton's method for finding roots, finite element method for 1D wave equation, and pattern formation (KPP anda system of two coupled PDEs). 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 book disassembles the entire finite element method for civil engineering students and professionals, detailing its supportive theory and its mathematical and structural underpinnings in the context of elastic structures and the principle of virtual work.For a full book description and... Platforms: Matlab

These files calculate the natural frequencies and Euler buckling load using Finite element technique. Hermitian beam elements are used as interpolation functions. Assembled mass, geometric stiffness matrix and stiffness matrix are calculated and solved for eigenvalues.First four mode shapes are... Platforms: Matlab

CALFEM is an interactive computer program for teaching the finite element method (FEM). The name CALFEM is an abbreviation of "Computer Aided Learning of the Finite Element Method". Platforms: *nix

AutoFEM Analysis is the finite element analysis software. The main feature of the system is its deep integration with AutoCAD Using AutoFEM Analysis, an AutoCAD user gets a possibility to solve the problem of finite-element modeling of various physical phenomena: Static analysis... Platforms: Windows

Calculate the electromagnetic eigenmodes and propagation constants of optical waveguides using the finite difference method. Features:1. Includes vector, semivector, and scalar versions.2. Can solve for all components of E and H.3. Allows for perfectly-matched boundary layers.4. Can model... Platforms: Matlab

FeMOS is a finite element method simulation of Double Gate MOSFET. The calculation uses Non-equilibrium Green's function method in fast uncoupled mode space approach. Platforms: *nix

APM Structure 3D is the light version of component for strength and dynamic analysis of parts and structures by finite element method. It is a useful utility for engineers and technical designers. APM Structure 3D is a universal system intended to perform complex analysis and design of rod,... Platforms: Windows

ANALYSIS: Use of highly flexible, general, finite element method Static analysis of 2D trusses Unlimited number of Nodes and Bars All type of boundary conditions (fixed, rollers, etc.) Translational and rotational spring supports Initial displacement conditions Rapid model creation, no need... Platforms: Windows

ANALYSIS: Use of highly flexible, general, finite element method Static analysis of multi span beams, 2D trusses and 2D frames Unlimited number of Nodes and Beams 3 Degrees of freedom per Node, 6 per Beam All type of boundary conditions (fixed, rollers, etc.) Translational and rotational... Platforms: Windows

CALFEM is an interactive computer program for teaching the finite element method (FEM). The name CALFEM is an abbreviation of 'Computer Aided Learning of the Finite Element Method'. Platforms: Windows, Mac, Linux