Open Source Windows Simulation Software - Page 10

The program does nmr product operator calculations for one, two, three and four spins. Receiver phase cycling is possible in conjunction with pulse phase cycling to simulate coherence pathway selection. An extensive manual and help files are included. Currently running under Linux and Windows.

RandTree is a MatLab based tree simulator program where the algorithm is based on Honda's model. We have used probabilistic generation of branches in order to simulate visually realistic tree structures. This program is designed to generate branching structures with bifurcation branching pattern (sympodial branching). By changing the probabilities and branching angles, you can generate different shapes of trees.

The simulator is released under the terms of an academic, non-commercial use license. Please read the license agreement in case of doubt.

RAPSim (Renewable Alternative Powersystems Simulation) is a free and open source micro-grid simulation framework for better understanding of power flowing behavior in smart microgrids with renewable sources. It is able to simulate grid-connected or standalone microgrids with solar, wind or other renewable energy sources. The proposed software calculates the power generated by each source in the microgrid and then it conducts a power flow analysis. This software is helpful for optimal placement of distributed generation units in a micro grid. RAPSim is designed for use in science and classroom with a simple to use graphical interface. It is an easily extendable framework that supports users in implementation of their own models, for grid objects, and algorithms for grid control.

The ACTIVE-IST project is a set of libraries (e.g. JAUS SDK) for rapid development of cross-platform applications with Unmanned Systems using the JAUS Standard (AS5710, AS6009), Simulations, Human-Interface Devices, and more.

ADiGator is a source transformation via operator overloading tool for the automatic differentiation of mathematical functions written in MATLAB. Given a user written file, together with information on the inputs of said file, ADiGator uses forward mode automatic differentiation to generate a new file which contains the calculations required to compute the numeric derivatives of the original user function. Furthermore, these calculations are written entirely in the native MATLAB language, and thus the process may be repeated to obtain nth order derivative files. The package is particularly appealing for applications where the same derivative must be found at multiple different points, i.e. non-linear root finding/optimization, stiff ode integration, etc.

BEDS evaluates patient flow in hospitals. Specifically, BEDS evaluates the occupancy of beds and the probability of receiving a bed on arrival to the hospital. BEDS is built on the assumption that patients arrive with a stationary intensity, and that the distribution governing their length-of-stay is also stationary. Thus, BEDS works only when modeling inpatient wards. BEDS further assumes a setup consisting of a number of patient types and wards. The wards contain a fixed capacity. Patient types are defined by their arrival intensity (how many arrive per day on average), and their average length-of-stay. Patients have a single preference for hospitalization in a specific ward. If the preferred ward is fully occupied on arrival, the patient is relocated to an alternative ward with a known probability. Several scientific studies have shown that this simple setup is an adequate approximation for describing the occupancy in inpatient wards.

A parametric, feature-based, sketch-driven 3D CAD application, built around a geometrical constraint solving engine. Project is in early development stage. The FreeSG library (http://freesg.org/) is required.

CRAFTY is a large-scale ABM of land use change. It has been designed to allow efficient but powerful simulation of a wide range of land uses and the goods and services they produce. It is fully open-source and can be used without the need for any programming.

In electrical engineering, AC circuits are often used in the design process. However, deriving the gain, input impedance or what have you is tedious and error prone. LaSolv takes a SPICE like description of your circuit and solves for whatever parameter you specify- voltage gain, trans-impedance, input impedance, etc.

Fast Finite Element Method implementation in native MATLAB.

Mendel’s Accountant is a biologically realistic, forward-time, parallel, numerical simulation program which models genetic change within a population, as affected by mutation and selection.

ORT is a tool for modelling and flying launch vehicles of arbitrary size and complexity. Unlike OpenRocket, it does not focus on amateur rockets but on real-world launch vehicles. The bundle includes a graphical design tool with an integrated simulation engine for rocket launches. Also included in the bundle is a playback application and a headless driver for logging simulations into spreadsheets. ORT integrates JME3 for 3D rendering.

During the period from 1990 through 2002, EPRI funded the development of a Lightning Protection Design Workstation (LPDW), which was used by many utilities to assess the lightning performance of distribution lines. Since about 2002, this program has not been available. EPRI decided to release the simulation kernel of LPDW under an open-source license (GPL v3), so it may be incorporated into IEEE Flash and other projects. OpenETran can presently simulate multi-conductor power lines, insulators, surge arresters, non-linear grounds, and lightning strokes. It efficiently calculates energy and charge duty on surge arresters, and iterates to find the critical lightning current causing flashover on one or more phases. It is also suitable for use in substation insulation coordination. Capacitor switching, TRV, and other applicaitons may be added. EPRI originally had permission to use code from the Numerical Recipes book in LPDW. These routines have been removed in favor of GSL.

OpenSARSim is builded for the simulation of synthetic aperture radar image. This software use the principle of electromagnetic field scattering to get the SAR image. Most of the computation work is based on GPU.

OpenVLAB is an open source integrated framework for the numerical simulation of fluid flows (CFD) based on the resolution of Navier-Stokes equations. It is designed for analysis, design & optimization on airfoils, wings, wind-turbine, and much more..

In this Project, a human head voxel model is developed for use in CST Studio commercial software pack using an improved voxel set extracted from MRI images of a human head. The proposed voxel model contains 256x256x128 voxel elements with dimensions of 1.1x1.1x1.4 mm. Moreover, the dispersive dielectric properties of head tissues, as well as their density and thermal conductivity, are embedded. This head voxel model was presented at the ICEE2017 conference. If you find this tool useful, please consider citing the following article: https://doi.org/10.1109/IranianCEE.2017.7985315

Please note: there is a new version of this project here: http://code.google.com/p/repastcity/ I'll keep this project alive but it wont be updated. A simple Repast Simphony project that demonstrates how to create small city using real GIS data. The city has houses and some agents who travel around the road network from house to house. Not affiliated with Repast Simphony.

A MATLAB package to simulate sample paths of the solution of a Itô or Stratonovich stochastic differential equation (SDE), compute statistics and estimate the parameters from data. A note of caution: SDE Toolbox is no more developed but it's still downloadable. Its inferential capabilities can be considered surpassed (at best). Actually the parameter estimation methods were already far from the state-of-art when the project began in 2007 (!). The considered implemented parametric and non-parametric Monte Carlo likelihood methods were chosen for their ability to treat both one-dimensional and multivariate SDE systems, although the quality of the inferential results can't match those obtained using more advanced techniques. Nevertheless the toolbox capabilities to simulate numerical solutions of SDE systems are still valid and can serve as a useful starting point to those willing to simulate stochastic dynamical models easily.

SIREN demonstrates how electricity demand may be met by a mix of renewable energy sources. Users explore potential location and scale of renewable energy sources (stations, storage, transmission) to meet electricity demand. SIREN allows you to build scenarios for the energy mix for your area of interest. It is based around the map of your chosen area and allows you to visualise the layout of the existing electricity network plus the additional stations you place on the map to build your scenario(s). The map initially shows the main skeleton of the existing electricity grid infrastructure and current generation stations. The strength of the simulation is in running the SAM models developed by US NREL for each renewable station in your current simulation. SAM calculates a list of power outputs for each hour of the year and shows how they meet the electricity demand and identify generation shortfalls. Weather files created from NASA (MERRA2) satellite data make it applicable worldwide

Computational Fluid Dynamics (CFD) solver aimed to solve multi-physics problems on unstructured grids (inviscid Euler, Navier-Stokes flows, Heat transfer). F90 based. MPI, cgns, Metis libraries used.

VRPSolver is a wizard-like application which solves a basic Vehicle Routing Problem (VRP) using the Savings Heuristic Method invented by Clarke and Wright in 1964.

3D Special Relativity Simulator - This program demonstrates what everyday objects would look like at close to the speed of light.

Open-source CT/ Radiography simulation package. XRaySim works seamlessly with commercial CAD packages and performs highly detailed scan simulations, with virtual X-ray sources and detectors, simulating cracks/ inclusions etc. very easily

gen_names populates customer/invoice tables with random (but realistic looking) data. The data has been gathered from various sources including census and local council web sites. It is supposed to be used to road test various DBMS solutions.