EuroTube is a professional team of engineers, scientists and mission operatives who build Europe’s first test infrastructure for vacuum transportation that can operate vehicles efficiently in the target speed regime of 700 to 900 km/h – a minimal requirement for vactrain concepts. Accommodating the interest of universities and engineering companies who need test facilities to develop the technology in a sustainable way, EuroTube provides a non-profit testing platform with a 3km-long, -scaled and accessible vacuum tube in Switzerland. Hence EuroTube is growing an interdisciplinary team that is responsible for the design, engineering and construction of key elements of this infrastructure.
Background Description for the CFD Analyst
EuroTube operates at pressures as low as 1 mbar. The pressure delta of 1 bar results in a high force on the tube’s shell structure. Its integrity can easily be ensured for the static design case (constant pressure delta) by a fairly simple structural assessment. However, the shell must also prove able to withstand the local gas compression of a passing vehicle and the worst case scenario of a tube rupture and a subsequent shock wave propagating along and violently flooding the tube. The underlying evaluation must be performed in a CFD environment under consideration of the tube geometry and internal pressure and will yield the time-variant air pressures and therefore structural stresses along the tube’s shell. The results are then used to implement design measures to prevent and contain the hazards and damages due to the resulting shock waves in the tube such as imposing structural design requirements or well-designed flooding concepts to counteract the uncontrolled flooding and shock wave propagation, e.g. by equidistantly spaced venting valves along the tube, which can be actuated during an emergency by means of the autonomous surveillance and control system.
- CFD simulation for normal operation of vehicles and worst case scenario of tube rupture
- Assessment of dynamic load on tube’s shell for the above scenarios
- Collaboration with the structural department for design requirements
- Implementation of additional measures and concepts to ensure the integrity of the tube
- BSc. or higher degree in mechanical engineering, CSE or similar
- Experience in CFD simulation
- Team player and entrepreneurial curiosity to work in a highly dynamic environment
- Own initiative and ability to independently lead designated studies and implement physical hardware measures
If you are interested in learning more about joining our team, please send us a few motivational sentences together with some background information.