User Documentation

The Spacecraft Plasma Interaction Software, SPIS, is a simulation software based on an electrostatic 3D unstructured Particle-In-Cell plasma model and consisting of a JAVA based highly modular Object Oriented library, called SPIS/NUM. More accurate, adaptable and extensible than the existing simulation codes, SPIS is designed to be used for a broad range of industrial and scientific applications.

The simulation kernel is integrated into a complete modular pre-processing/computation/postprocessing framework or Integrated Modelling Environment (IME), called SPIS/UI, allowing a high degree of integration of external tools, such as CAD tools, meshers, material properties handling and visualization libraries. SPIS-UI offers a very easy and flexible access to each level of the numerical modules via a modulare design based on OSGI bundles.

Originally designed to focus on scientific applications, the application scope of SPIS is largely wider now and is regularly extended to new engineering applications or domains of physics. This includes, for instance, the modelling of electrical propulsion systems, ESD prediction on solar arrays or link with radiation models through deep charging phenomena.

The prediction of the electrostatic charge (absolute and relative) of spacecraft for engineering purposes is also a key issue with modern platforms that are more and more complex, operating high- power and sensitive electronic devices or using modern materials. Differential charging can lead to arcing, dangerous for the electronic payload. This need is especially critical for GEO and MEO missions, where are located most of the commercial platforms. Moreover, the progressive generalisation of electrical propulsion systems on commercial platforms pushes integrators to perform much more detailed electrostatic analysis before the flight.

SPIS General Documentation

SPIS-UI Documentation

SPIS-NUM Documentation

Intellectual Properties and Licenses

Integrated External Tools and Libraries

Normalised development and continuous integration chain

SPIS developments are hosted on a the SPINE platform powered by the LibreSource collaborative platform and in a frame of a standardised continious integration chain based on:

The developments of SPIS repects the ESA/ECSS-E40 recommandations.