Phase 3 – Working Group 10: SPH impact simulations
Impacts play a key role in shaping planetary systems (e.g., final number of planets, their orbital parameters, masses, interior structure and composition as well as presence of satellites). Due to the limitations of studying large impacts in laboratory experiments, computer simulations are an important tool to investigate the outcome of such collisions. The group of Joachim Stadel (UZH) has developed a new state of the art SPH hydro code (pkdgrav3) for large body impact simulations. However, for small body collisions where the fluid approximation fails, material strength is important.
The aim of this tiger team is to incorporate the physics relevant for small body collisions in pkdgrav3 with the help of the group of Martin Jutzi. The primary scientific output is the development and dissemination of this new hydro code within the NCCR. Applications of this code will promote exchange and collaboration across different domains in PlanetS, between the different research groups working on topics related to impacts.
We welcome all PlanetS members and associates to participate in this working group and provide ideas for applications and collaboration. Furthermore, we plan to organize a work shop to teach new users how to use the code.
Coordination Team:
- Christian Reinhardt (UZH, A.3)
- Sabina Raducan (UBE, A.5)
- Thomas Meier (UZH, A.3)
Meetings
WG 10 Meeting 1: 5. Sept 2023 in Bern
Participants
• Christian Reinhardt (UZH)
• Sabina Raducan (UBE)*
• Thomas Meier (UZH)
• Ravit Helled (UZH)*
• Martin Jutzi (UBE)
• Douglas Potter (UZH)
• Joachim Stadel (UZH)
• Daniel Bower (UBE)
* Participated remote via Zoom
Schedule
• 9:45 Welcome and coffee
• 10:00 Short presentations from members
• 12:00 Lunch
• 13:00 Round table discussion
Presentations
• Martin Jutzi (UBE) “Bern SPH and its material models”
• Joachim Stadel (UZH) “Trillion Particle SPH Planet Simulations: Why? How?”
• Thomas Meier (UZH) “Ultra-High Resolution Simulations of Planetary Collisions”
• Dan Bower (UBE) “Post-impact interior and atmosphere evolution”
• Christian Reinhardt (UZH) “Giant impact simulations at ICS”
Lunch at Obere Schanze: From back to front: Dan Bower, Doug Potter, Thomas Meier (left); Martin Jutzi, Joachim Stadel (right)
