Free-surface flow simulations with interactively moving bodies
The simulation of free-surface flow around moored or floating objects faces a series of challenges, concerning the flow modeling and the numerical solution method. One of the challenges is the simulation of objects whose dynamics is determined by a two-way interaction with the incoming waves. The &#...
| Published in: | Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV |
|---|---|
| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
American Society of Mechanical Engineers (ASME)
2017
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/11370/030f2c56-5100-4497-b6fa-27f9ab595003 https://research.rug.nl/en/publications/030f2c56-5100-4497-b6fa-27f9ab595003 https://doi.org/10.1115/OMAE2017-61175 http://www.scopus.com/inward/record.url?scp=85031912194&partnerID=8YFLogxK |
| Summary: | The simulation of free-surface flow around moored or floating objects faces a series of challenges, concerning the flow modeling and the numerical solution method. One of the challenges is the simulation of objects whose dynamics is determined by a two-way interaction with the incoming waves. The 'traditional' way of numerically coupling the flow dynamics with the dynamics of a floating object becomes unstable (or requires severe underrelaxation) when the added mass is larger than the mass of the object. To deal with this two-way interaction, a more simultaneous type of numerical coupling is being developed. The paper will focus on this issue. To demonstrate the quasi-simultaneous method, a number of simulation results for engineering applications from the of fshore industry will be presented, such as the motion of a moored TLP platform in extreme waves, and a freefall life boat dropping into wavy water. |
|---|