Speaker
Luca Bruno
(CERN)
Description
Beam intercepting devices (collimators, targets, absorbers) capable of sustaining high-intensity beams
are key elements to meet the future physics needs. The highly non-linear phenomena involved in their
design study (cavitation, transient magnetic-hydrodynamic effects on liquid metal jets, phase change,
fluid-structure interactions) require advanced simulation tools at the forefront of today’s numerical
technology. This goes beyond the software usually available which uses numerical techniques not capable
of modelling effectively or even unable to study such complex phenomena.
In order to address this issue, a technical survey has been performed to investigate the state-of-the-art
in numerical simulations. The capabilities of existing advanced numerical tools has been assessed and a
code has been identified which combines comprehensive equations of state, strength and failure material
libraries, phase transition models and simulation techniques (meshless finite element methods) indispensable
to satisfy the design needs.
The presentation will focus on the rationale for this choice by examples and a benchmark with experimental
results on liquid metal targets performed at CERN.
Author
Luca Bruno
(CERN)
