A Numerical Model for Natural Backfill of Pipeline Trenches Subjected to Unidirectional／Oscillatory Flows-中国期刊网

摘要 Anumericalmodelfortheself-burialofapipelinetrenchisdeveloped.Morphologicalevolutionsofapipelinetrenchundersteady-currentoroscillatory-flowconditionsaresimulatedwith/withoutapipelineinsidethetrench.Theoscillatoryflowinthisstudyrepresentstheactionofwaves.Thetwo-dimensionalReynolds-averagedcontinuityandNavier-Stokesequationswiththestandardk-εturbulenceclosure,aswellasthesedimenttransportequations,aresolvedwiththefinitedifferencemethodinacurvilinearcoordinatesystem.Bothbedandsuspendedloadsofsedimenttransportareincludedinthemorphologicalmodel.Becauseofthelackofexperimentaldataonthebackfillingofpipelinetrenches,thenumericalmodelisfiretlyverifiedagainstthreeclosely-relevantexperimentsavailableinliterature.Adetailedmeasurementofthechannelmigrationphenomenonundersteadycurrentsisemployedfortheassessmentoftheintegralperformanceofthemodel.ThetwoexperimentalresultsfromU-tubetestsareusedtovalidatethemodel'sabilityinpredictingoscillatoryflows.Differenttime-marchingschemesareemployedforthemorphologicalcomputationunderunidirectionalandoscillatoryconditions.Itisfoundthatvortexmotionswithinthetrenchplayanimportantroleinthetrenchdevelopment.

1. A Numerical Model for Mixing Areas of Pollutant Discharging into Tidal Flows.海洋科学,1996-03.
2CHEN Ying LU Chuan-jing. A HOMOGENOUS-EQUILIBRIUM-MODEL BASED NUMERICAL CODE FOR CAVITATION FLOWS AND EVALUATION BY COMPUTATION CASES.水力学及河流动力学,2008-02.
3LV Biao. A Higher-Efficient Three-Dimensional Numerical Model for SmallAmplitude Free Surface Flows.海洋科学,2014-05.
4S.Iqbal;A.C.Benim;S.Fischer;F.Joos;D.KluB;A.Wiedermann. Experimental and Numerical Analysis of Natural Bio and Syngas Swirl Flames in a Model Gas Turbine Combustor.物理,2016-05.
5Xia Huang;Jin Dong;Wen-Jing Jia;Zhi-Gang Zheng;Can Xu. Dynamics of clustering patterns in the Kuramoto model with unidirectional coupling.物理,2018-05.
6Reza Ghazangian;Mehdi Shafieefar;Roozbeh Panahi;Mohammad R. Allahyar. An Appropriate Unidirectional Wave Spectrum Model for the Strait of Hormuz.船舶与海洋工程,2015-03.
7KANG Weishan XU Zengyu PAN Chuanjie. Numerical Simulation of MHD Jet Flows.物理,2004-01.
8李为卫;许晓锋;杨扬;刘亚旭;胡美娟. Welding of 2205 duplex stainless steel natural gas pipeline.焊接,2016-03.
9陆夕云. NUMERICAL STUDY OF AN OSCILLATORY TURBULENT FLOW OVER A FLAT PLATE.力学,1999-01.
10Pan, JN;Wang, HC;Yao, GQ. A Numerical Model for Typhoon Surges.海洋科学,1998-02.

A Numerical Model for Natural Backfill of Pipeline Trenches Subjected to Unidirectional／Oscillatory Flows

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A Numerical Model for Natural Backfill of Pipeline Trenches Subjected to Unidirectional／Oscillatory Flows

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