Abstract
AEGIR is a time-domain seakeeping CFD code that uses an advanced, high-order boundary element method (BEM) to solve the three-dimensional potential-flow and has been developed for several years. In this paper, the latest version of AEGIR is used to predict the seakeeping of the Tri-SWACH with and without side hulls in headsea regular waves respectively. The primary objective was to evaluate its accuracy of predicting seakeeping performance of the Tri-SWACH under regular headsea waves in AEGIR. A series of simulated time domain heave and pitch responses for Tri-SWACH with and without side hulls via AEGIR have been compared with corresponding model tests conducted in the high speed towing tank in Davidson Lab, Stevens Institute of Technology. A good agreement in terms of heave and pitch responses between AEGIR numerical predictions and experimental data shows the seakeeping prediction capability of AEGIR for Tri-SWACH Preliminary Design. Also, the simulated seakeeping of a Tri-SWACH is compared with a Tri-SWACH center hull. It is found that the effects of side hulls will increase the transverse stability of the Tri-SWACH without causing additional significant effect on the seakeeping performance of the Tri-SWACH.
Original language | English |
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State | Published - 2021 |
Event | SNAME 26th Offshore Symposium, TOS 2021 - Virtual, Online Duration: 6 Apr 2021 → 7 Apr 2021 |
Conference
Conference | SNAME 26th Offshore Symposium, TOS 2021 |
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City | Virtual, Online |
Period | 6/04/21 → 7/04/21 |
Keywords
- CFD
- Model tests
- Seakeeping
- Tri-SWACH, side hulls