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numerical simulation of local scour around underwater pipeline based on fluent software
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نویسنده
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zhang zhiyong ,zhang zhiyong ,zhang zhiyong ,shi bing
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منبع
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journal of applied fluid mechanics - 2016 - دوره : 9 - شماره : 2 - صفحه:711 -718
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چکیده
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This paper proposed a new methodology which was based on computational fluid dynamics forpredicting the scouring process of underwater pipeline. by redeveloping a commercial cfdcomputer code, the governing equations for the flow model was solved by finite volume methodand wall shear stress which acted as the key parameter to judge the incipient motion of sedimentwas firstly calculated. then the morphological change of the sandy bed was simulated by dynamicmesh technology. based on the comparisons between experimental results and numerical results, itwas confirmed that present numerical modeling method can simulate the flow field and scouringprocess around underwater pipeline accurately. besides, the influence of gap ratios on the scourbehaviors was investigated by the present simulation.
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کلیدواژه
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underwater pipeline ,local scour ,numerical simulation ,fluent ,yser defined function.
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آدرس
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zhejiang institute of hydraulics and estuary, china. ocean university of china, college of engineering, china. zhejiang provincial key laboratory of estuary and coast, china, zhejiang institute of hydraulics and estuary, china. ocean university of china, college of engineering, china. zhejiang provincial key laboratory of estuary and coast, china, zhejiang institute of hydraulics and estuary, china. ocean university of china, college of engineering, china. zhejiang provincial key laboratory of estuary and coast, china, ocean university of china, college of engineering, china
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پست الکترونیکی
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sediment@ouc.edu.cn
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Authors
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