From SPHYSICS

Revision as of 09:20, 18 September 2009

SPHysics - SPH Free-surface Flow Solver

Open-Source Smoothed Particle Hydrodynamics code

v1.4 UPDATE RELEASED: FEBRUARY 2009

1. Welcome to SPHysics
2. Developers (photos)
3. Downloads (serial, parallel, GPU, hybrid-coupling)
4. Documentation
5. SPHysics FAQ
6. SPHysics Forum
7. Visualization: Images & Videos
8. Code History & Fixed Bugs (UPDATES)
9. Future Developments & Releases
10. Publications using the SPHysics code
11. How to reference SPHysics
12. Links - SPHERIC
13. Help and Info about SPHysics website

The SPHysics Code

SPHysics is a Smoothed Particle Hydrodynamics (SPH) code inspired by the formulation of Monaghan (1992) developed jointly by researchers at the Johns Hopkins University (U.S.A.), the University of Vigo (Spain), the University of Manchester (U.K.) and the University of Rome La Sapienza (Italy). We are excited to announce that the latest official release of version 1.4 of SPHysics is now available.

This code version is the basic version and incorporates the following features:

• 2-D and 3-D versions
• Variable timestep
• Choice of time integration schemes: predictor-corrector, verlet, Beeman
• Choice of Kernel functions:
  • Gaussian
  • Quadratic
  • Cubic Spline
  • Wendland Quintic
• Choice of two types of solid boundary condition: dynamic and repulsive force
• Periodic open boundary conditions in 3-D
• Choice of viscosity treatments:
  • Artificial Viscosity
  • Laminar Viscosity
  • Sub-Particle Scale (SPS) Turbulence Model
• Different Types of Moving Objects (forced motion only)
  • Moving Gate
  • Wavemaker
  • Sliding Wedge
• Visualization routines using Matlab or ParaView
• New Options:
  • Density Reinitialization using Shepard or Moving Least Squares (MLS)
  • RESTART option to stop and restart simulations
  • Capability for different Equations of State

From version 1.2 includes faster linked lists and core subroutines.

Download SPHysics now!

The code has been developed over a number of years primarily to study free-surface flow phenomena where Eulerian methods can be difficult to apply, such as waves, impact of dam-breaks on off-shore structures. Furthermore, the meshfree technique facilitates the simulation of highly distorted fluids/bodies.

Future Developments

Extensions of the code are already underway to add the following features to the SPHYSICS serial code:

• kernel gradient corrections
• floating bodies
• different output data formats (ASCII, VTU, Ensight, H5PART)
• improved algorithm in neighbour list

(predicted release date: Dec 2009)

New software will be released:

• Parallel code called ParallelSPHysics
• GPU code called GPU-SPHysics
• Hybrid Boussinesq-SPH code called FUN-SPHysics

To download new software, see Download SPHysics now!

Links

All developers of the SPHysics code are members of SPHERIC which is the

SPH European Research Interest Community.

This organisation seeks to promote the development and use of SPH within the academic and industrial communities. Click here for the SPHERIC Home Page