Sediment transport simulation and design optimization of a novel marsh shoreline protection technology using computational fluid dynamics (CFD) modeling  

作　　者：Salman Sakib Grant Besse Peng Yin Daniel Gang Donald Hayes 

机构地区：[1]Department of Civil Engineering,University of Louisiana at Lafayette,104 E University Ave,Lafayette,LA,70504,USA [2]Department of Mechanical Engineering,University of Louisiana at Lafayette,104 E University Ave,Lafayette,LA,70504,USA [3]U.S.Army Engineer Research and Development Center(ERDC),Vicksburg,MS,39180,USA

出　　处：《International Journal of Sediment Research》2022年第1期14-25,共12页国际泥沙研究（英文版）

基　　金：supported by the University of Louisiana,Pierce Industries,and Louisiana Board of Regents under LEQSF(2011e14)-RD-B-07,LEQSF(2013e2017)-RD-B-04.

摘　　要：Coastal Louisiana has the nation's most fragile and valuable wetlands,whose loss represents 80%of the total losses in the United States.The severely restricted mobility of conventional shoreline protection structures makes them impossible to be redeployed.The Wave Suppression and Sediment Collection(WSSC)system is a novel technology of high mobility and compatible with existing shoreline protection technologies.Previous laboratory studies on WSSC showed great potential for wave reduction and sediment collection.The current study aimed to optimize the design parameters of WSSC using a validated computational model.A computational fluid dynamics(CFD)model was developed and validated using experimental data from the previous laboratory study.Then,a parametric analysis was conducted with a focus on the performance optimization of wave reduction and sediment collection with respect to pipe diameter and face slope.Simulation results showed that the wave reduction efficiency decreased with increasing pipe diameter and face slope.In contrast,the sediment transport efficiency was enhanced by increasing pipe diameter but was not affected significantly by varying face slopes.

关 键 词：BREAKWATERS Computational fluid dynamics Sediment transport Shoreline protection Coastal engineering ANSYS FLUENT 

分 类 号：P748[天文地球—海洋科学] P736.21