News and updates
IMPETUS Solver v8.1 comes with a significant upgrade to the SPH solver, improved CFD functionality and more.
Highlights:
Surface SPH
SPH material boundaries are now identified and tracked. Having an explicit description of surfaces unlocks the door to a variety of possibilities, such a full CFD-SPH coupling and an improved visualization in the GUI.
CFD-SPH coupling
CFD-SPH coupling is automatically activated if the CFD and particle domains are overlapping. The picture below shows a snapshot from a Shaped Charge simulation where the explosive is modeled with a CFD approach and liner and casing with SPH.
![](https://www.impetus.no/wp-content/uploads/2023/09/CFD-SPH_coupling-1-1024x742.png)
Visualization
The GUI supports both point based and surface visualization of SPH bodies. The settings are accessed by choosing Particles in the object tree and then Visualization.
![](https://www.impetus.no/wp-content/uploads/2023/09/Surface_SPH-2-1024x430.png)
CFD solver
Apart from a powerful CFD-SPH coupling, work has been done to improve the accuracy of non-reflective boundaries. There is also a new command *CFD_SOURCE
that defines a gas generator inside the CFD domain.