359 projects for "java open source" with 2 filters applied:

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  • 1
    Brax

    Brax

    Massively parallel rigidbody physics simulation

    Brax is a fast and fully differentiable physics engine for large-scale rigid body simulations, built on JAX. It is designed for research in reinforcement learning and robotics, enabling efficient simulations and gradient-based optimization.
    Downloads: 3 This Week
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  • 2
    Surya

    Surya

    Implementation of the Surya Foundation Model for Heliophysics

    Surya is an opensource, AI‑based foundation model for heliophysics developed collaboratively by NASA (via the IMPACT AI team) and IBM. Named after the Sanskrit word for “sun,” Surya is trained on nine years of high‑resolution solar imagery from NASA’s Solar Dynamics Observatory (SDO). It is designed to forecast solar phenomena—such as flares, solar wind, irradiance, and active region behavior—by predicting future solar images with a sophisticated long–short vision transformer architecture, thereby enabling improved space weather forecasting. ...
    Downloads: 0 This Week
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  • 3
    OpenRocket
    An Open Source model rocket simulator.
    Downloads: 42 This Week
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  • 4
    JaxoDraw

    JaxoDraw

    JaxoDraw: Feynman Diagrams made easy!

    JaxoDraw is a tool to generate Feynman diagrams in a mouse click-and-drag fashion. Graphs can be exported to a variety of graphics formats and arbitrary latex code can be used for labels to produce high-quality publishing-style figures.
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    Downloads: 56 This Week
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    G-P - Global EOR Solution

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  • 5
    GMAT

    GMAT

    General Mission Analysis Tool

    The General Mission Analysis Tool (GMAT) is an open-source tool for space mission design and navigation. 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 R2025a. For a complete list of new features, compatibility changes, and bug fixes, see the R2025a Release Notes in the Users Guide.
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    Downloads: 859 This Week
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  • 6
    gVirtualXRay

    gVirtualXRay

    Virtual X-Ray Imaging Library on GPU

    gVirtualXRay is a C++ library to simulate X-ray imaging. It is based on the Beer-Lambert law to compute the absorption of light (i.e. photons) by 3D objects (here polygon meshes). It is implemented on the graphics processing unit (GPU) using the OpenGL Shading Language (GLSL). SimpleGVXR is a smaller library build on the top of gVirtualXRay. It provides wrappers to Python, R, Ruby, Tcl, C#, Java, and GNU Octave.
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    Downloads: 21 This Week
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  • 7
    Elmer finite element software

    Elmer finite element software

    Open source finite element software for multiphysical problems

    Elmer is a finite element software for numerical solution of partial differential equations and multiphysical problems. It includes models of structural mechanics, fluid dynamics, heat transfer, electromagnetics etc. Elmer home is www.csc.fi/elmer
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    Downloads: 266 This Week
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  • 8
    PyMca
    Stand-alone application and Python tools for interactive and/or batch processing analysis of X-Ray Fluorescence Spectra. Graphical user interface (GUI) and batch processing capabilities provided.
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    Downloads: 138 This Week
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  • 9
    REDUCE

    REDUCE

    A Portable General-Purpose Computer Algebra System

    REDUCE is an interactive system for general algebraic computations of interest to mathematicians, scientists and engineers. It can be used interactively for simple calculations but also provides a flexible and expressive user programming language. The development of the REDUCE computer algebra system was started in the 1960s by Anthony C. Hearn. Since then, many scientists from all over the world have contributed to its development. REDUCE has a long and distinguished place in the...
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    Downloads: 154 This Week
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  • 10
    PreviSat

    PreviSat

    Satellite tracking software

    PreviSat is a satellite tracking software for observing purposes. Very easy to use, it shows positions of artificial satellites in real-time or manual mode. PreviSat is able to make predictions of their passes, predictions of MetOp and COSMO-SkyMed flares, transits of all satellites, predictions of Starlink satellites passes and several other calculations.
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    Downloads: 162 This Week
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  • 11
    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.
    Downloads: 12 This Week
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  • 12
    astroTools

    astroTools

    Command-line tools for astronomy and astrophysics

    Command-line tools for astronomy and astrophysics, written in Fortran.
    Downloads: 1 This Week
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  • 13
    MaxFEM

    MaxFEM

    Software for electromagnetic simulation

    MaxFem is an open software package for electromagnetic simulation by using finite element methods. The package can solve problems in electrostatics, direct current, magnetostatics and eddy-currents. Since version 0.4.0, MaxFEM requires Python 3. We have moved the installers to the MaxFEM website (see below). In order to improve MaxFEM, we will require you to fill out a simple form before downloading them.
    Downloads: 7 This Week
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  • 14
    ransfoil

    ransfoil

    console to calculate airflow around an airfoil based on RANS approach

    RANSFOIL is a console program to calculate airflow field around an isolated airfoil in low-speed, subsonic, transonic or supersonic regime by numerically solving the Reynolds averaged Navier-Stokes (RANS) equations using mature computational fluid dynamics (CFD) method. As postprocess results, the aerodynamic parameters of the airfoil, e.g., lift coefficient and drag coefficient, can be integrated from the airflow distribution near wall boundary. In addition, the coupling between airflow and...
    Downloads: 2 This Week
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  • 15
    CAMPARI

    CAMPARI

    Software for molecular simulations and trajectory analysis

    We are proud to introduce version 5 of CAMPARI. We have added a number of new features, most notably a Python interface for interpreting user-supplied code (with the help of ForPy), a novel trajectory storage standard (with the help of libpqxx/PostgreSQL), and a module for performing transition path theory. Naturally, CAMPARI continues to provide the reference implementation of the ABSINTH force field paradigm and implicit solvation model. CAMPARI is a joint package for performing and...
    Downloads: 2 This Week
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  • 16
    WavePacket (C++/Python)

    WavePacket (C++/Python)

    Time-dependent simulation of open and closed quantum systems

    WavePacket is a program package for numerical simulation of quantum-mechanical wavepacket dynamics of distinguishable particles. It can be used to solve single or coupled time-independent or time-dependent (linear) Schrödinger and Liouville-von Neumann-equations. Optionally accounting for the interaction with external electric fields within the semiclassical dipole approximation, WavePacket can be used to simulate modern experiments involving ultrashort light pulses in photo-induced physics...
    Downloads: 0 This Week
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  • 17
    QtCDB2
    QtCDB2 is new rewritten software for Coincidence Doppler Broadenning of Positron Annihilation line measurement. Instead of old QtCDB, this version doesnt need external trigger chain. Software is based on Qt and Qwt libraries. Adlink PCI-9820 or other Adlink wd-dask based DAQ is needed to run binaries. HpGe Preamplifier gain 500mV/MeV is needed to correct work.
    Downloads: 0 This Week
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  • 18
    loto
    http://loto.sourceforge.net/ hosts 4 projects of free software related to materials science and physics. They are loto, feram, compasses and xtalgrowth.
    Downloads: 0 This Week
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  • 19
    A portable loudspeaker design system supporting measurement, modeling, simulation and optimization of boxes, filters and systems.
    Downloads: 0 This Week
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  • 20
    Zgoubi is a raytracing code. Since 1972 it pushes charged particles through accelerators and beam lines, by stepwise solution of Lorentz force equation - and their spins via Thomas-BMT differential equation. Zgoubi simulates beam dynamics and polarization in a variety of accelerators (storage ring, synchrotron, cyclotron, betatron, microtron, FFAG, multi-pass ERL, etc) and optical systems (beam lines, magnetic and electrostatic optical components, time-of-flight and mass...
    Downloads: 0 This Week
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  • 21
    jOcular

    jOcular

    Optical Design Software for simulating systems of lenses, prisms, etc.

    Optical Design Software for optical systems comprised of light sources, lenses, apertures, prisms, imagers, photometers, etc. Simulate light through the system and compute images and intensities at various locations in the design.
    Downloads: 2 This Week
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  • 22
    Motofit co-refines Neutron and X-ray reflectometry data, using the Abeles matrix / Parratt recursion and least squares fitting (Genetic algorithm or Levenberg Marquardt). It works in the IGOR Pro environment (TM Wavemetrics).
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    Downloads: 9 This Week
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  • 23
    ED Software project contains several programs used (mostly) for processing gas-phase electron diffraction (GED) experimental data.
    Downloads: 2 This Week
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  • 24
    DataMelt

    DataMelt

    Computation and Visualization environment

    DataMelt (or "DMelt") is an environment for numeric computation, data analysis, computational statistics, and data visualization. This Java multiplatform program is integrated with several scripting languages such as Jython (Python), Groovy, JRuby, BeanShell. DMelt can be used to plot functions and data in 2D and 3D, perform statistical tests, data mining, numeric computations, function minimization, linear algebra, solving systems of linear and differential equations. Linear, non-linear...
    Downloads: 3 This Week
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  • 25

    Frame3DD

    Static and Dynamic Structural Analysis of 2D and 3D frames.

    FRAME3DD is a program for the static and dynamic structural analysis of two- and three-dimensional frames and trusses with elastic and geometric stiffness.
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    Downloads: 72 This Week
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