Numerical Simulation for Free Rolling Motion of a Surface Vehicle

Abstract:

To study seakeeping capacity of a special surface vehicle, free rolling motion in static water is investigated; damping coefficient and rolling moment of inertia was taken as criterion; a mathematical model for 6-dof motion of the vehicle in viscous flow is constructed based on N-S equations and rigid body space motion equations. Forces and moments induced by flow around vehicle are computed from cells of surface on the vehicle. Local remeshing scheme is taken to remesh the field when position of the vehicle changed. Surface of vehicle is taken as non-slip wall boundary. Results indicate that damping coefficient and rolling moment of inertia deduced form computation coincide with experimental results.

• Periodical: Advanced Materials Research (Volumes 760-762)
• Pages: 1856-1859
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.760-762.1856
• Online since: September 2013
• Authors: Xiao Wei Wan, Tao Wang, Xin Min Yao
• Keywords: Free Rolling Motion, Numerical Simulation, Seakeeping Capacity, Viscous Flow

References

[1] WANG Tao, GUO Qi-sheng, XU Guo-ying, YAO Xin-min. Preliminary Study on Seakeeping Capacity of Sailing Amphibious Vehicle Based on CFD [J]. Journal of System Simulation, 2009, 10: 3142-3145.

[2] WANG Tao XU Guoying YAO Xinmin. Numerical Simulation of Two Phases Flow Field Around Amphibious Vehicle and Analysis of Power Performance on Water [J]. Chinese Journal of Mechanical Engineering, 2008, 12: 168-172.

DOI: 10.3901/jme.2008.12.168

[3] WANG Tao, GUO Qi-sheng, XU Guo-ying. Simulation for Flow Field around Sailing Amphibious Vehicle [J]. Journal of System Simulation, 2007, 22: 5130-5132.

[4] Technical Committees of the 24th ITTC. Final report of the resistance committee [EB/OL]. http: /www. ittc. ncl. ac. uk/reports/index. htm, 19 June, (2006).

[5] Liu Ruxun. Numerical Simulation Method and Tracking for move-interface [M]. Herfei: University of Science and Technology of China Press, (2001).