General Mission Analysis Tool
Do you want to go to Mars but don't know when to leave or how much to bring? Do you want to study Earth protection by planning a mission to a near-Earth asteroid? The General Mission Analysis Tool (GMAT) is an open-source space mission design tool to help you answer these and many other space flight challenges. GMAT is developed by a team of NASA, private industry, and public and private contributors. The GMAT development team is pleased to announce the release of GMAT version R2017a. For a complete list of new features, compatibility changes, and bug fixes, see the Release Notes. Below are just some of the new capabilities contained in this release. • New navigation data types • Preliminary Kalman filter • STK ephemeris propagation • Utility for managing data files (EOP etc.) • Collocation library • Preliminary API interface • Second level editing of navigation data
A graphical interface for solving exterior ballistics problems, based on the excellent GNU exterior ballistics library. This software generates valid 3-DOF solutions to small arms trajectories, including wind and atmospheric corrections.
A program for fitting structural models to small angle scattering data
SASfit has been written for analyzing and plotting small angle scattering data. It can calculate integral structural parameters like radius of gyration, scattering invariant, Porod constant. Furthermore it can fit size distributions together with several form factors including different structure factors. Additionally an algorithm has been implemented, which allows to simultaneously fit several scattering curves with a common set of (global) parameters. This last option is especially important in contrast variation experiments or measurements with polarised neutrons. The global fit helps to determine fit parameters unambiguously which by analysing a single curve would be otherwise strongly correlated. SASfit user guides: http://youtube.com/sasfitteam releases: http://sasfit.org/releases code: http://sasfit.org
OpenFlower is a free and open source CFD code (for Linux and Windows) mainly intended to solve the turbulent incompressible Navier-Stokes equations with a LES approach. It can deal with arbitrary complex 3D geometries with its finite volume approach.
Object-oriented crystallographic library and program, for the analysis of Crystal structures from scattering experiments: optimized scattering computation, Graphical interface for structures and data, global optimization algorithms.
GMES is a free Python package for FDTD electromagnetic simulations.
GMES is a free finite-difference time-domain (FDTD) simulation Python package developed at GIST to model photonic devices. Its features include simulation in 1D, 2D, and 3D Cartesian coordinates, distributed memory parallelism on any system supporting the MPI standard, portable to any Unix-like system, variuos dispersive ε(ω) models, CPML absorbing boundaries and/or Bloch-periodic boundary conditions, and arbitrary material and source distributions. GMES officially stands for GIST Maxwell’s Equations Solver.
The Orientation Library is a collection of routines for rotation/orientation manipulation. It ranges from general tools to others for crystal orientations. It is written in C and is well-documented. An interactive program enables to run the routines.
Free multiphysics simulation software package
Advanced Simulation Library (ASL) is a free and open source multiphysics simulation software package. Its computational engine is based, among others, on the Lattice Boltzmann Methods (http://en.wikipedia.org/wiki/Lattice_Boltzmann_methods) and is written in OpenCL (http://en.wikipedia.org/wiki/OpenCL) which enable extraordinarily efficient deployment (http://asl.org.il/benchmarks) on a variety of massively parallel architectures, ranging from inexpensive FPGAs, DSPs and GPUs up to heterogeneous clusters and supercomputers. The engine is hidden entirely behind C++ classes, so that no OpenCL knowledge is required from application programmers. ASL can be utilized to model various coupled physical and chemical phenomena and employed in a multitude of fields: computational fluid dynamics, virtual sensing, industrial process data validation and reconciliation, image-guided surgery, computer-aided engineering, high-performance scientific computing, etc..
ED Software project contains several programs used (mostly) for processing gas-phase electron diffraction (GED) experimental data.
Statistical thermodynamics package
OpenThermo is a program package for statistical thermodynamics computations beyond rigid rotor - harmonic oscillator approximation
qsims simulates quantum dynamics with an (almost) arbitrary time-dependent Hamiltonian. qsims uses a Chebychev polynomial expansion of the Schrodinger propagator, and the pseudospectral method developed by R. Kosloff.
Quantum Mechanical Toolkit And 3D Viewer for C++. Allows Data Visualisation via Images, Surfaces and Volume plots using OpenGL, as well as rapid development Quantum Mechanical Simulations. Uses the Blitz++, VTK Visualisation and Qt Libraries.
Knitter produces a 3-dimensional model of a knitting pattern. It supports KnitML, as well as a native language similar to that of traditional knitting patterns.
SLFCFD stands for San Le's Free Computational Fluid Dynamics. It is a package of scientific software and graphical user interfaces for use in computational fluid dynamics. It is written in ANSI C and distributed under the terms of the GNU license.
A library to compute the electron and chemical kinetics on plasmas
PLASMAKIN is a package to handle physical and chemical data used in plasma physics modeling and to compute gas-phase and gas-surface kinetics data: particle production and loss rates, photon emission spectra and energy exchange rates.
Ray tracing engine in C++ with front-end GUI in Java
SimMyWorld is originally a ray tracing program in C we developed for a school project. Then, we kept improving it and translated it into C++ to use an object-oriented model. A Java GUI has been developed to help users use the computation codes.
ACCORD is a C library for composition of scanning electron or helium-ion microscope images with correction of drift. It produces significantly more accurate images than the traditional imaging techniques and also provides drift trajectories.
Nuclear physics data acquisition system
Nuclear physics data acquisition system. The suit of applications can be used to collect data from physics experiments using CAMAC/CAEN/VME devices. The system is quite specialized, but the code can still be useful for others doing something similar...
AbeGroup is a software package that will perform basic functions on algebraic groups. The first goal is to input a group, given the generators, and AbeGroup will determine whether or not the group is abelian. Further functionality will be added.
CARMEL is a suit of parallel codes designed to perform classical molecular dynamics simulations of atomic and ionic systems Potentials : Lennard Jones, Yukawa, Tersoff Bond order Integrators : NPT, NVT, NVE
Interactive program for evaluation of Laue diffraction patterns
Clip is an interactive program for simulation, indexing and refinement of Laue diffraction images.
NOTE: Codebase is being moved to it's new home at: https://github.com/cjcliffe/CubicVR A high-performance object-oriented OpenGL 2.0 & OpenGL ES 3D engine with a simple implicit library interface. Includes GLSL, Bullet physics and Lua scripting.
Plugin orientated Discrete Dipole Approximation (DDA) Solver
Discrete Dipole Approximation Project, is a software package designed to solve the Discrete Dipole Problem by the Discrete Dipole Approximation (DDA) method. This software is desgined to be plugin operated allowing for easy implimincation of new solver methods to improve the efficienty of the code. The plugin support also allow the program to write its output in multiple formats and structures defined by plugins.
Simultaneously fit SAS data with polydisperse core-shell-shell spheres
Keywords: -simultaneously fit several SAXS and SANS data sets with polydisperse (Schultz-Zimm or Gaussian distribution f(R)) spherical core-shell-shell nanoparticles -analytical expressions are used for from factor F(Q) and its integral over f(R), no numerical integration required -absolute units -Mathematica is required via console (MathKernel) -Mathematica's local and global optimizers (simulated annealing, differential evolution, Nelder-Mead, ...) can be used -range for fit parameters and further constraints between fit parameters are possible -Monodisperse(!) hard sphere structure factor can be used, too -long computation times (depending on problem size and amount of constraints) from hours to a few days are possible -non-parallelized code
Finite Element Method on 3D Meshes
f3dmlib is a FEM library that can read, write and analyse 3D tetrahedral meshes, minimize a given functional, and refine the resulting meshes. The minimization is parallelized with OpenMP. Three main features in unstable 1.8.x version (available via GIT): quadratic elements, periodic boundary conditions, and the solver for scalar and electromagnetic wave equations. f3dmgeom is a collection of a few simple tools for creating surface meshes for tetgen. It can handle simple geometries only.