Wave Equation Solution
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
License: Freeware | Size: 10 KB | Download (44): A Linear Dynamical System Associated To Wave Equation Download |
The Circular Membrane Modes model displays the analytical wave equation solution for an ideal circular membrane with a fixed boundary. The solution is described by two integers m and n where n is a positive integer that counts the number of radial nodes and m counts the number of azimuthal...
Platforms: Mac
License: Freeware | Size: 102.4 KB | Download (34): Circular Membrane Modes Model Download |
It is Time Reversal simulation in Matlab. Black circle is obstacle. Trialgle is detected obstacle position, red points is transmitters/receivers. It is 2d wave equation solution. Borders absorbs waves but not ideally so small reflection from borders exist. The waves are reflected from obstacle....
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (45): Time Reversal simulation Download |
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
License: Freeware | Size: 624.64 KB | Download (49): Matlab files of the book: Mathematical Modelling for Earth Sciences Download |
Planar String is a small program written in Java that allows to explore the evolution of an elastic string moving in the plane. Mathematically, it provides some insight into the dynamics of the wave equation.
The motion of the string is prescribed by configuring its positions at time 0 and at...
Platforms: Windows
License: Freeware | Download (444): Planar String Download |
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
License: Freeware | Size: 92.16 KB | Download (47): Finite Differences Beam Propagation Method in 3-D Download |
Planar Elastic String is a small, Java based application specially designed to enable users to explore the evolution of an elastic string moving in the plane.
Mathematically, it provides some insight into the dynamics of the wave equation. for WindowsAll
Platforms: Windows
License: Freeware | Download (447): Planar Elastic String Download |
A Fast MAC based 3D Free surface fuid solver. Capable also of simulating viscoelastic fluids.Includes also wave equation solver for simulating shallow water phenomena.
Platforms: Windows, Mac, BSD, Linux
License: Freeware | Size: 833.21 KB | Download (45): Real Time Free Surface Solver (RTFSS) Download |
Global tsunami can be started with asteroid impact or earthquake or thermonuclear bomb. It simulated with 2d wave equation. It is wave equation on sphere surface. Land influence neglected. triangular mesh used. The method is some kind of finite difference method. See fromulas in laplacian.jpg...
Platforms: Matlab
License: Freeware | Size: 1.03 MB | Download (42): Global tsunami simulation GUI Download |
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
License: Freeware | Size: 10 KB | Download (45): Numerical solution of the Falkner-Skan equation for various wedge angles Download |
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
License: Freeware | Size: 10 KB | Download (43): Application of the Riccati Equation to Solve Binary Distillation Problems Download |
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
License: Freeware | Size: 10 KB | Download (40): Eigen Energy Solver for Schroedinger Equation Download |
A differential equation can be solved by several methods. I have presented the simulink method to solve the differential equ. The que is showed in the screenshot.Queries and Comments are dearly invited.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (41): Simulink solution of Differential Equation Download |
The Two Dimensional Schrodinger Equation model simulates the time evolution of a two-dimensional wave packet as it moves towards a slit with an obstacle in it, both with variable widths. By changing three parameters via sliders provided, slit width, obstacle width, and initial position of the...
Platforms: Mac
License: Freeware | Size: 71.68 KB | Download (40): Two Dimensional Schrodinger Equation Download |
Modest Ordinary Differential Equation Library is a C++ library to model rate equations. MODEL is a numeric simulation library written during my PhD to simulate systems of rate equations describing Vertical Cavity Surface Emitting Lasers (VCSELs). I decided to write one myself after looking at...
Platforms: *nix
License: Freeware | Size: 2.5 MB | Download (154): Modest Ordinary Differential Equation Library Download |
Simulate a time dependent solution of Schrodinger's equation and calculate energy spectrum of a 1D finite square well using split-operator method.Reference: M. D. Feit, J. A. Fleck, Jr., and A. Steiger, "Solution of the Schrodinger Equation by a Spectral Method", Journal of Computational Physics...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Tutorial - 1D finite square well Download |
This function gets the nomograph which shows the relationship between the wavelength, wave period and water depth using the dispersion equation.0. Syntax:>> wavelenvsth1. Inputs: None.2. Outputs: Nomograph.3. Example: >> run(wavelenvsth) 4. Notes:- It's only necessary to run the function.- In the...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): Relationship between wavelength, wave period and water depth Download |
Free Wave Editor v1.7 is an advanced wav file editor that offers many functions not found in other editors. We have spent considerable time and money to bring you this product as a way of introduction to our Xtreme Audio Editor.
Features...
1. Open ( Open ), create ( New ) and save (...
Platforms: Windows
License: Freeware | Size: 6.73 MB | Download (1861): Free Wave Editor Download |
Wave Editor is a fast and easy digital audio editing software for Windows. It provides powerful and user-friendly editing environment which suits beginners especially and perform basic editing capabilities like: cut, copy, paste and delete parts of recording. Unlike the other sound editors based...
Platforms: Windows
License: Freeware | Size: 1.09 MB | Download (760): Wave Editor Download |
KISS WaveEditor is a complete, simple wave editor. KISS makes editing WAV files as easy as editing text with its clear user interface and powerful effects. Our wave form editing window allows you to find the part you want to edit quickly.
With KISS you can edit WAV files you download from the...
Platforms: Windows
License: Freeware | Size: 4.08 MB | Download (790): KISS Wave Editor Download |