Application of dam-break flow solution to predict the green water velocity on a 2D tension-leg platform
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Copyright © 2015 by the International Society of Offshore and Polar Engineers (ISOPE). The present study employs bubble image velocimetry (BIV) to quantify the green water velocities on a simplified model structure mimicking an unrestrained tension-leg platform (TLP). A plunging breaker impinging on the frontal wall of the platform is experimentally simulated. The breaking wave was generated using a wave focusing method. A highspeed camera was used to record images for velocity determination. Repeated measurements were carried out on two perpendicular view planes. The structure velocities were also obtained using BIV. The Ritter's solution, considered as the simplest analytical solution to the dam-break flow, was chosen to model the greenwater flow. The Ritter's solution agrees well with the measured data not only on the overall distribution but also on the velocity magnitude.
author list (cited authors)
Chuang, W. L., Chang, K. A., & Mercier, R.