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| Analysis of Flow around Submarine Pipeline Based on Fluent |
| CHEN Xue-Hao, ZHU Zhi-Xia |
| (School of Naval Architecture, Ocean and Civil Engingeering, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract In certain assumptions, the analysis of flow around submarine pipeline in uniflow was simplified to twodimensional flow around cylinder on fixed bed. Incompressible N S formula and standard k ε turbulence model were applied to simulate the flow around the pipe on seabed, and the results were consistent with the experimental results. The development (i.e. formation, expansion and shedding) of vortex on the leeside of pipe was simulated for suspended pipe; furthermore, pipes on different conditions (i.e. different elevation and income flow velocities) were calculated, and the most possible scour area was found; flow development, bed shear stress, and pressure distribution characteristics on bed were calculated in order to provide scientific basis of preventing the local scour around subsea pipelines.
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Received: 17 May 2010
Published: 30 March 2012
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