Experimental study on response of submarine pipeline over flat beds in steady flow
Model tests have been conducted on exible submarine pipelines over at beds subjectedto steady ow in the wave-current ume with 55m in length, 4m in width and 2.5m in depth. Thepipelines are made by exible pipe with 60mm in diameter and placed at various distances from aat bed. Gap to diameter ratio varied from 0.4 to 1.2 when the pipelines are not sagging. The owvelocity in the model tests ranged from 0.35 m/s to 0.6 m/s and water depth is 0.4m. The Reynoldsnumbers ranged from 2.1×10to 3.6×10within the subcritical Reynolds numbers range. Bendingstrain was measured by strain gauges bonded on the inner surface of the pipeline. The feature ofdynamic response is analyzed and discussed in time domain and frequency domain against variousgaps between the pipeline and the at bed.
pipeline vortex-induce vibration gap to diameter ratio steady ow
Y.Sha Y.X.Wang G.Y.Wang G.W.Li Z.J.Chen
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 1160241, China
国际会议
The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)
上海
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）