Open Source Linux Simulation Software - Page 55

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.

RAtom solves nonlinear Kohn-Sham equation for the neutral atom. The adaptive algorithm based on finite element method (FEM) is implemented. Discretization of the differential eigenvalue problem is done by finite element method with Lobatto polynomials as a basis functions. High order Gauss quadratures are applied in order to obtain the total energy of atom with absolut accuracy of 1E-6 hartree. 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

RDV is a visualization environment for scientific and engineering data. Built on top of the RBNB dynamic data server, it supports local and remote data sources and can visualize numeric, video, image, and audio data in a number of different ways.

The efficient algorithm calculating the overlap and the kinetic integrals for the numerical atomic orbitals is implemented. The described algorithm exploits the properties of the prolate spheroidal coordinates. The overlap and the kinetic integrals in R^3 are reduced to the integrals over the rectangular domain in R^2, what substantially reduces the complexity of the problem. We prove that the integrand over the rectangular domain is continuous and does not have any slope singularities. For calculation of the integral over the rectangle any adaptive algorithm can be applied. The exemplary results were obtained by application of the adaptive Gauss quadrature. The implemented algorithm is described in my paper: "Numerical calculation of overlap and kinetic integrals in prolate spheroidal coordinates", International Journal of Quantum Chemistry, Volume 108, Issue 2, Year 2008, Pages 249–256 http://onlinelibrary.wiley.com/doi/10.1002/qua.21485/full

RNGSHARP is an easy to extend C# library for generating generic objects with a specific probability or random numbers from a wide variety of distributions. Library provides mix distributions system and a way to set output accuracy.

ROSEN means RObotic Simulation Erlang eNgine; it is a software library, written in Erlang, which simulates 3D environments and in particular autonomous mobile robots, each with its behaviour and interaction capabilities.

A cross-platform RPG and adventure game development workshop. Designed to reduce the amount of time to create large scale games by providing custom procedural generation tools.

RPowerFlow - a steady state electric power system power flow solver.

Rejection-based stochastic simulation algorithm (RSSA) is an efficient exact algorithm for doing stochastic simulation of biochemical reaction systems. RSSA improves over state of the art of stochastic simulations by avoiding and collapsing as much the number of propensity updates.

RSchr-5 calculates the smallest eigenvalues of the one-electron Schrödinger equation. The solved problem is defined on the finite domain, which is a box. The problem is solved with the zero Dirichlet boundary conditions. The implemented algorithm uses Finite Element Method with B-splines as basis functions. Disctretization leads to generalized eigenvalue problem. Program RSchr-5 solves the generalized eigenvalue problem by algorithms implemented in SLEPc amd PETSc libraries. It uses Krylov-Schur algorithm from SLEPc library. The program is implemented in C++. The implementation is based on Message Passing Interface (MPI).

The RTSCup is a programming environment for RTS games which can be used as a benchmark for evaluating several AI techniques. It is designed to make it easier and more intuitive for researchers to produce their applications over this plataform.

The RToolkit is an open source, cross platform, object-oriented C++ framework for HLA compliant simulation development.

This project is aimed at graph traversal by Random walk problem.

Moved to GitHub in 2013. This SourceForge project is no longer updated. Source code and documentation: stokes: https://github.com/kichiki/stokes libstokes: https://github.com/kichiki/libstokes libiter: https://github.com/kichiki/libiter twobody: https://github.com/kichiki/twobody RYUON User's Manual: https://github.com/kichiki/RYUON-manual RYUON : many-particle simulation suite

A framework for generating a random universe populated with random stars, planets, etc. Uses the laws of physics and the known periodic table of elements for computations.

Two Markov-Chain-Monte-Carlo-algorithms ("Glauber Dynamics" and "Flip Dynamics") used for randomly sampling k-colorings of a graph.

RangeSim is a collection of classes for simulating distributed protocols for range search on P2P (peer-to-peer) network environments. It is based upon the PeerSim simulator, which offers easy configuration, extendability and high performance.

Model that permits to simulate the plant differentiation processes.

Seems to be closely related to Cellular automaton, except this creates a complex pattern from a mathematical function you input. See website for examples/live applets. This program makes use of an old GPL version of the JEP equation parser.

ray tracing ghz band radio coverage java simulation

Ray Watch is a cross-platform Ray Tracer written entirely in C++. Currently, the project supports basic primitives and all the finer stuff like reflection, refraction, specularity and soft shadows.

This project has migrated to github: https://github.com/raysect

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.

RTPA - a program which allow the user analyze parameters of real-time process.

A soft-real-time hardware-in-the-loop simulation framework utilizing SysV IPC and Glade/GTK user interface. For demonstration purposes, includes an implementation of a fixed timestep dynamic simulation of a power grid.