Journal of Waterway Port Coastal and Ocean Engineering最新文献

{"title":"Nonhydrostatic Numerical Modeling of Fixed and Mobile Barred Beaches: Limitations of Depth-Averaged Wave Resolving Models around Sandbars","authors":"S. Elsayed, R. Gijsman, T. Schlurmann, N. Goseberg","doi":"10.1061/(asce)ww.1943-5460.0000685","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000685","url":null,"abstract":": Along sandy coastlines, submerged, shore-parallel sandbars play an essential role in shoreline morphology by dissipating wave energy through depth-induced wave breaking. While wave breaking and sediment transport around sandbars are complex three-dimensional (3D) processes, shoreline morphology is typically simulated with depth-averaged models that feature lower computational demand than do 3D models. In this context, this study examines the implications of depth-averaging the fl ow fi eld and approximating the breaking process in nonhydrostatic models (e.g., XBeach nonhydrostatic) for the hydro-and morphodynamic processes around sandbars. The implications are drawn based on reproducing large-scale experiments of a barred beach pro fi le using the single-layer (XBNH) and the reduced two-layer (XBNH + ) modes of XBeach. While hydrodynamic processes were predicted with high accuracy on the sandbar ’ s seaward side, wave heights were overpredicted on the bar ’ s landward side. The overestimation was due to the simpli fi ed reproduction of the complex breaking process near the sandbar ’ s peak, particularly in terms of the generated turbulence in the water column. Moreover, the velocity pro fi le with a strong undertow could only be represented in a simpli fi ed way even using the two-layer mode XBNH + , thus resulting in inaccurate predictions of sediment loads around the sandbar. A parametric study is performed, and it revealed which model parameters control the simulation of the wave-breaking process. Thus, wave height predictions could be improved by tuning the energy-dissipation parameters. However, fl ow velocities and morphodynamic predictions could not be improved accordingly. Thus, this study identi fi es possible hydrodynamic model improvements, such as incorporating a roller dissipation model. Moreover, it improves understanding of key drivers and processes that should be included in nonhydrostatic depth-averaged models to simulate morphological changes around sandbars more ef fi ciently. DOI: 10.1061/(ASCE)WW.1943-5460.0000685 . This work is made available under the terms of the Creative Commons Attribution 4.0 International license, https://creativecommons.org/licenses/by/4.0/.","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47008051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative Composition of Drag Forces on Suspended Pipelines from Submarine Landslides","authors":"Xing-sen Guo, De-feng Zheng, Lu Zhao, C. Fu, T. Nian","doi":"10.1061/(asce)ww.1943-5460.0000680","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000680","url":null,"abstract":"Abstract The impact forces of submarine landslides (i.e., non-Newtonian fluids) on oil and gas pipelines, especially the most dangerous drag force, are of great significance in the design of deep-w...","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45831972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimating Extreme High Still Water Levels in North San Francisco Bay: Comparison of Annual Maxima Method with Direct and Indirect Methods","authors":"I. Haltas","doi":"10.1061/(asce)ww.1943-5460.0000679","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000679","url":null,"abstract":"","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47326532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Study to Determine Forces Acting on Starbloc Armor Units and Velocities Occurring in a Single-Layer Rubble Mound Breakwater under Regular Waves","authors":"I. Safari, D. Mouazé, F. Ropert, S. Haquin, A. Ezersky","doi":"10.1061/(asce)ww.1943-5460.0000706","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000706","url":null,"abstract":"","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58563878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrodynamic Characteristics of Concave Front Pile-Supported Breakwaters with a Tubular Wave Screen","authors":"Karthik Ramnarayan Swaminathan, V. Sundar, S. Sannasiraj","doi":"10.1061/(asce)ww.1943-5460.0000682","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000682","url":null,"abstract":"","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47051707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vorticity–Stream Function Formulation for Turbulent Oscillatory Boundary Layer over the Sea Bottom","authors":"G. Vittori, P. Díaz-Carrasco, P. Blondeaux","doi":"10.1061/(asce)ww.1943-5460.0000693","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000693","url":null,"abstract":"","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45657834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluid–Vehicle–Tunnel Coupled Vibration Analysis of a Submerged Floating Tunnel Based on a Wake Oscillator Model","authors":"Heng Lin, Y. Xiang, Yunshen Yang, Chao Gao","doi":"10.1061/(asce)ww.1943-5460.0000677","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000677","url":null,"abstract":"Abstract The submerged floating tunnel (SFT) is a newly developed traffic structure for crossing the long waterway. On the basis of the vehicle–tunnel coupled vibration, the vortex-induced effect o...","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49322700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Directional Infragravity Waves Induced by Bichromatic and Bidirectional Waves: Theoretical Approach and Experimental Affirmation","authors":"M. G. de Souza e Silva, N. Kerpen, P. Rosman, C. Neves, T. Schlurmann","doi":"10.1061/(asce)ww.1943-5460.0000711","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000711","url":null,"abstract":"","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58563888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of Holding Force Limit and Provision against Dragging Anchor","authors":"M. Ueno","doi":"10.1061/(asce)ww.1943-5460.0000688","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000688","url":null,"abstract":"","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49455590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of the Current-Wave Angle on the Local Scour Around Circular Piles","authors":"Oscar de la Torre, M. Hann, Jon Miles, S. Stripling, D. Greaves","doi":"10.1061/(asce)ww.1943-5460.0000692","DOIUrl":"https://doi.org/10.1061/(asce)ww.1943-5460.0000692","url":null,"abstract":"This paper studies the effect of the wave front-current angle on the scour around a circular pile. An experimental study was carried out in the Coastal, Ocean and Sediment Transport (COAST) laboratory at the University of Plymouth (UK) using a single monopile of 0.125 m in diameter and an 8 m long by 1.5 m wide by 0.2 m high sand pit. The results obtained during the test campaign show the influence of the angle between waves and currents on both the maximum scour depth and the time scale of the process. Wave fronts partially aligned with current (65°) produce deeper scour holes than perpendicular forcing conditions (90°). Wave fronts partially against the current (115°) produce less scour than any of the two previous scenarios. The addition of waves reduced the maximum scour depth, compared with the current-only case. The development of the scour hole was found to be more rapid when waves are added to the current, with 50% of the final scour achieved in half the time. The results show that wave direction relative to the current is an important component in scour prediction. DOI: 10.1061/(ASCE)WW.1943-5460.0000692. © 2021 American Society of Civil Engineers. Author keywords: Scour; Monopile; Sediment transport; Wave-current interaction.","PeriodicalId":54367,"journal":{"name":"Journal of Waterway Port Coastal and Ocean Engineering","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45481306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}