Search Results for "solver"
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Showing 34 open source projects for "solver"
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Minsky
System dynamics program with additional features for economics
Minsky brings system dynamics and monetary modelling to economics. Models are defined using flowcharts on a drawing canvas (as are Matlab's Simulink, Vensim, Stella, etc). Minsky's unique feature is the "Godley Table", which uses double entry bookkeeping to generate stock-flow consistent models of financial flows. Minsky is good for demonstrating mathematics too, with the most "math-like" interface in system dynamics. Sign up to Minsky's Patreon page (for as little as $1 a month) at... -
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Code_TYMPAN
Open source software calculating industrial noise in the environment
...It allows dealing with 3D realistic geometries and has a convenient Human Machine Interface to help engineers to build 3D models and to achieve analysis needed in environmental noise studies. Code_TYMPAN™ allows developing your own calculation method from basic components and geometrical solvers. It includes a solver based on ISO 9613 extended to industrial applications. In 4.2.x version, a Python API allows advanced users to build and solve models programmatically. By this mean, developers have the capability of building new tools with acoustic features with high productivity. -
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Library for ion optics, plasma extraction and space charge dominated ion beam transport.
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ViennaSHE is a modern semiconductor device simulator for 1D, 2D and 3D device simulation. It relies on deterministic solutions of the Boltzmann Transport Equation using Spherical Harmonics Expansions.
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QSS Solver
Modeling and simulation tool for continuous and hybrid systems.
UPDATE: ----------- This repository is no longer maintained, the new version of the QSS Solver is available at: https://github.com/CIFASIS/qss-solver -
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BioFVM
3-D diffusion solver for biological problems
BioFVM is an open source diffusive transport solver for biological problems. It can solve for the diffusion of tens or hundreds of substrates on large 3-D domains. For simplicity, the code has minimal external dependencies. BioFVM was first published in: A. Ghaffarizadeh, S.H. Friedman, and P. Macklin. BioFVM: an efficient, parallelized diffusive transport solver for 3-D biological simulations. -
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Nifty Sim is a high-performance nonlinear finite element solver, developed at University College London. A key feature is the option of GPU-based execution, which allows the solver to significantly out-perform equivalent commercial packages.
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RAtom
solves nonlinear Kohn-Sham equation for the neutral atom.
...Disctretization leads to generalized eigenvalue problem, which is solved by procedures from LAPACK libraries. The program is implemented in C++, it runs as a single thread. The implemented algorithm is described in the following papers: 1. Z. Romanowski, "Adaptive solver of a Kohn-Sham equation for an atom", Modelling Simul. Mater. Sci. Eng. vol. 17, 045001 (2009) 2. Z. Romanowski, "Application of h-adaptive, high order finite element method to solve radial Schrödinger equation", Molecular Physics, vol. 107, pp. 1339-1348 (2009). Further questions: romz@wp.pl -
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OpenFVM is a general open source three-dimensional Computational Fluid Dynamics (CFD) solver (for Linux and Windows). It uses the unstructured finite volume method to simulate non-isothermal transient flow. Gmsh is used for pre- and post- processing.
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Ulambator
boundary element based flow solver for microfluidics
Ulambator solves the depth-averaged Stokes equations using a boundary element method. The combination of both reduces the discretization effort from 3D to 1D. Hence the flow solver is well adapted to free interface flows in shallow geometries. The manual and tutorial codes are still being extended. New functions will be made available. For more user information please check http://lfmi.epfl.ch/ulambator -
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Virtual Nodes Parallelization for MicroModelica models. This tool performs Virtual Nodes Parallelization on a given MicroModelica model for being simulated in QSS Solver. The objective is to reduce the error introduced by simulating large-scaled models in parallel on QSS Solver simulating tool. This is done through redundant computations on certain state variables of the model. These redundant computations are called Virtual Nodes.
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CFD2D
The incompressible Navier-Stokes equations solver in 2D domains
CFD2D is open source software for Linux for solving the non-dimensionalized incompressible Navier-Stokes equations (NSE) inside an arbitrary two-dimensional domain inscribed in a unit square with Dirichlet and "do-nothing" boundary conditions. The space discretization is based on Finite Element Method (FEM) using an approximately uniform triangular mesh. The two choices of FE spaces are offered, these are of the so called MINI-element and of the Taylor-Hood element. The first element... -
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GMES
GMES is a free Python package for FDTD electromagnetic simulations.
...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. -
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WODA solver
A finite volume groundwater simulator
WODA (Well Outline and Design Aid) is a groundwater simulator developed at the Group for Numerical Analysis, Jaroslav Cerni Institute, Belgrade, Serbia. WODA does not have its own graphical user interface, but it can work with groundwater models constructed using the freely available Lizza interface, http://www.bioirc.ac.rs/index.php/groundwater-flow-software. -
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Flow Solver Package with different applications (laminar flows, heat driven flows) in 3D and 2D for Netgen/NGSolve
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allink
Software for data analysis, image processing, simulations, solver.
...Addraw) openGL engine. ElPoly) analyze mechanical properties of polymer and membrane like structures. Addyn) perform molecular dynamics and Monte Carlo simulations and has a solver for 4th oder PDE. Avvis) perform all the operation of Matematica on different sets of data visualized on a Qt graphical interface. DrImage) image manipulation on the Matematica filters. The program is intended to use as less as possible external libs (optional: openGL, gsl, fftw, cgal, png, tiff, boost, MPI, Qt...). -
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Acoustic FDTD Solver (AC2D) -- is a software to simulate acoustic wave propagation in two dimensions based on the finite-difference time-domain (FDTD) method.
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Discrete Dipole Aproximation Project
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. -
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CADET
Chromatography Analysis and Design Toolkit
We have moved to GitHub: https://github.com/cadet The Chromatography Analysis and Design Toolkit (CADET) is developed at the Institute of Bio- and Geosciences 1 (IBG-1) under supervision of Prof. Eric von Lieres. The core of the CADET software is a fast and accurate solver for the General Rate Model (GRM) of packed bed liquid chromatography. The CADET solver covers a wide range of GRM variants, combining different transport and binding models with state-of-the-art mathematical algorithms and scientific computing techniques. The CADET framework also comprises a MATLAB interface and standard routines for parameter estimation, process optimization and experimental design. ... -
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CAPLET
GDS visualization and parallelized capacitance extraction
Project CAPLET is a capacitance extraction toolkit that extract capacitance at field-solver accuracy. CAPLET can directly handle GDS2 layout files into capacitance matrices in both GUI and command line interfaces. The internal extraction algorithm is specialized for VLSI interconnect structures but not exclusively, as long as the structure is of Manhattan geometry and embedded in a uniform dielectric material. -
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ASCEND is a modelling environment and solver for large or small systems of non-linear equations, for use in engineering, thermodynamics, chemistry, physics, mathematics and biology. Solvers for both steady and dynamic (NLA & DAE) problems, are provid
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CAMFR (CAvity Modelling FRamework) is a fast, flexible, friendly full-vectorial Maxwell solver. Although it can tackle general electromagnetic problems, its main focus is on applications in the field of photonics.
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ViennaFEM
A finite element solver using state-of-the-art programming techniques.
ViennaFEM is a library-centric implementation of the finite element method in C++. It features a symbolic math kernel, which manipulates the strong or weak form of the problem and automatically derives the discrete form. ViennaFEM is built on top of the following libraries: ViennaMath provides the symbolic math kernel, ViennaGrid (with ViennaData) allows for a generic grid handling and quantity storage, while ViennaCL provides the linear solvers and GPU acceleration. -
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WDSolve is a black box solver for nonlinear hyperbolic partial differential equations. WDSolve is based on the Wave Digital method, leading to explicit finite difference schemes with superior stability properties.
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This is a program for numerical solution of Euler equations of compressible flows using discontinuous galerkin method. The code is written on top of the deal.II finite element library. Code has been moved to https://github.com/cpraveen/dflo
