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Volume 4, Issue 8 (3-2009)                   marine-engineering 2009, 4(8): 65-75 | Back to browse issues page

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Omrani S, Hakimzadeh H. Numerical and Empirical Investigation of Flow Separation Phenomenon around Semi-buried Pipelines due to Steady Currents. marine-engineering. 2009; 4 (8) :65-75
URL: http://marine-eng.ir/article-1-54-en.html
1- Sahand University of Technology
Abstract:   (21422 Views)

In this paper, in order to understand the flow-pipe interaction more clearly, the variations on flow pattern around semi-buried pipelines due to steady current have physically and numerically been investigated. In physical modeling section, the experiments have been carried out in a flume with 10 meter length, 0.3 meter width and 0.5 meter depth using a P.V.C pipe with 6.35 cm in diameter (for different burial depth-diameter ratios). To visualize the flow patterns, the polystyrene particles with 0.4 mm in diameter and 1.05gr/cm3 in density have been used. In order to understand the phenomenon as well as possible, the whole processes of tests have been recorded using a digital camera. For the numerical simulation section, the flow field has been analyzed using a computational fluid dynamics software “FLUENT”. For the software, the governing equations are descretized using the finite volume method. Geometry and mesh production have been done using a pre-processor software called “GAMBIT”.

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Type of Study: Research Paper | Subject: Offshore Hydrodynamic
Received: 2010/07/18 | Accepted: 2013/10/19

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International Journal of Maritime Technology is licensed under a

Creative Commons Attribution-NonCommercial 4.0 International License.