Coastal Engineering最新文献_第5页

Numerical investigation of solitary wave interaction with a vertical elastic submerged plate 垂直弹性沉水板与孤立波相互作用的数值研究

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-03-15 Epub Date: 2026-01-17 DOI: 10.1016/j.coastaleng.2026.104949

Junwei Ye, Deping Cao

Flexible structures offer a cost-effective, environmentally friendly, and easily installable solution for coastal protection. This study numerically investigates the interaction between a solitary wave and a submerged vertical elastic plate using a fully coupled computational fluid dynamics (CFD) and computational solid mechanics (CSM) model. Model reliability was confirmed via a mesh convergence study, turbulence model selection and validation against existing experimental and numerical data. The effects of key parameters such as incident wave height, stiffness coefficient, mass coefficient, and Poisson's ratio were systematically examined. Results indicate that the incident wave height governs the degree of nonlinearity in the interaction, while the stiffness coefficient is the key structural parameter: its increase effectively reduces plate displacement and horizontal force but increases wave transmission and reflection coefficients. The mass coefficient exhibits negligible influence within the studied parametric range. Poisson's ratio shows limited sensitivity on wave coefficients but significantly affects structural responses (displacement and horizontal force). Based on the parametric study, a set of empirical formulae was developed to predict the wave transmission coefficient, reflection coefficient, peak horizontal load, and maximum horizontal displacement. These formulae provide a beneficial predictive tool for the design and performance assessment of submerged flexible structures.

柔性结构为海岸保护提供了一种经济、环保、易于安装的解决方案。本文采用计算流体力学（CFD）和计算固体力学（CSM）的完全耦合模型，对孤立波与水下垂直弹性板的相互作用进行了数值研究。通过网格收敛研究、湍流模型选择以及对现有实验和数值数据的验证，证实了模型的可靠性。系统地考察了入射波高度、刚度系数、质量系数、泊松比等关键参数的影响。结果表明，入射波高决定了相互作用的非线性程度，而刚度系数是关键的结构参数：刚度系数的增加有效地减小了板的位移和水平力，但增加了波的透射和反射系数。在所研究的参数范围内，质量系数的影响可以忽略不计。泊松比对波浪系数的敏感性有限，但对结构响应（位移和水平力）有显著影响。在参数化研究的基础上，建立了一套预测波浪透射系数、反射系数、峰值水平荷载和最大水平位移的经验公式。这些公式为水下柔性结构的设计和性能评估提供了有益的预测工具。

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引用次数: 0

Corrigendum to “Amplification of nonlinear response of floating photovoltaics by coastal topography: Experimental and numerical study” [Coast. Eng., 204 (January 2026), 104876 (2025)] “沿海地形对浮动光伏非线性响应的放大：实验和数值研究”的勘误[海岸]。Eng。， 204（2026年1月），104876（2025年）]

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-03-15 Epub Date: 2025-12-24 DOI: 10.1016/j.coastaleng.2025.104941

Qiujue Jiang , Deqing Zhang , Junfeng Du , Qingping Zou , Anteng Chang , Huajun Li

引用次数: 0

Experimental study on the local scour around flexible submarine cables exposed to three-dimensional current loading 三维电流载荷作用下海底柔性电缆局部冲刷试验研究

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-03-15 Epub Date: 2025-12-19 DOI: 10.1016/j.coastaleng.2025.104940

Fangyu Wang , Jisheng Zhang , Dongfang Liang , Yee-Meng Chiew , Yakun Guo

The flexible cables are prone to scour-induced damage, posing risks to the safe operation of underwater structures. To investigate these impacts, this study carries out three-dimensional laboratory experiments on local scour around a flexible cable. In the experiments, the flow is unidirectional, and only clear-water scour is considered under a constant water depth of 0.45m. By varying the flow intensity (0.7, 0.8, and 0.9), flow incident angle (α = 60°, 75°, 90°), and cable diameter (D = 5 cm and 6 cm), the paper systematically investigates the mechanisms of the local scour, cable motion, strain, lateral scour development velocity, and quasi-equilibrium scour state.

Due to the flexible nature of the cable, its motion differs from that of a rigid pipeline. There is a significant sagging during the scour process, which is quantified by the vertical displacement of the cable. Cable vibration is also observed, which is closely related to its natural frequency and varying test conditions. The deflection of the cable depends on the cable flexibility, test parameters, and the scour process. The result shows that the strain profile along the cable length typically exhibits a parabolic distribution. A point of discontinuity can be observed in the strain time-history curve, which signifies the completion of the lateral expansion of the span shoulder. Visual observations in the texts are consistent with mechanisms previously reported for seepage-induced pipeline-scour initiation, further supporting the applicability of this mechanism for flexible cable. An asymmetric scour pattern is prominent when the flow is oblique to the cable. A large incident angle leads to a more pronounced speed difference between the lateral scour development in two directions. Higher flow intensity results in an increased scour rate and deeper scour depth, as compared to lower flow conditions. As expected, a larger cable diameter yields a larger scour depth.

柔性电缆易受冲击损伤，对水下结构的安全运行构成威胁。为了研究这些影响，本研究对柔性电缆周围的局部冲刷进行了三维实验室试验。实验中，水流为单向流动，在0.45m恒定水深下，只考虑清水冲刷。通过改变流动强度（0.7、0.8和0.9）、流动入射角（α = 60°、75°、90°）和电缆直径（D = 5 cm和6 cm），系统地研究了局部冲刷、电缆运动、应变、侧向冲刷发展速度和准平衡冲刷状态的机理。由于电缆的柔韧性，它的运动不同于刚性管道。在冲刷过程中存在明显的下垂，这种下垂可以通过索的垂直位移来量化。索的振动与其固有频率和试验条件的变化密切相关。电缆的挠度取决于电缆的柔韧性、测试参数和冲刷过程。结果表明：应变沿索长呈抛物线型分布；应变时程曲线出现一个不连续点，表明跨肩侧胀完成。文中的视觉观察结果与先前报道的渗漏引起的管道冲刷启动机制一致，进一步支持了该机制对柔性电缆的适用性。当水流向电缆倾斜时，不对称冲刷模式突出。大入射角导致两个方向横向冲刷发展速度差更明显。与低流量条件相比，较高的流量强度导致冲刷速率增加，冲刷深度加深。正如预期的那样，电缆直径越大，冲刷深度越大。

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引用次数: 0

Monitoring beach face morphology from stereo satellite imagery 利用立体卫星图像监测海滩表面形态

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-03-15 Epub Date: 2025-11-21 DOI: 10.1016/j.coastaleng.2025.104905

Shannon Brown , Annika O'Dea , Jeffrey Ruby , Erwin W.J. Bergsma , Rafael Almar , Katherine Brodie

High-resolution topographic data are critical in determining the vulnerability of a beach system to coastal hazards. In this work, five Digital Surface Models (DSMs) of the coastal environment in Duck, NC, USA are generated using a fully remote photogrammetry-based workflow applied to stereo satellite imagery and compared to lidar-derived Digital Elevation Models (DEMs) of the beach face and dune collected by a van-mounted lidar referred to as CLARIS. The workflow applies an autoGCP optimization methodology that automatically identifies matching features between background regional datasets and the new satellite imagery and thus removes the need for manually surveyed or extracted tie points. The resulting DSMs have root mean square differences (RMSDs) of 0.30–0.41 m when compared to the closest CLARIS DEM. Morphologic change over time-scales ranging from 14-days to 4-years is well correlated with the lidar-derived morphologic change (R² = 0.68 − 0.74), although the satellite DSMs contained some small-scale noise on the beach-face. The RMSDs of cross-shore volume change over the same time steps ranged from 6.77 to 21.59 m³/m. Coastal morphological parameters relevant to coastal hazard assessments (dune crest location and elevation, dune toe location, and beach slope) were extracted and compared to mobile or aerial lidar surveys. The satellite-derived parameters captured the observed alongshore variability in each parameter, with RMSDs in dune toe and crest cross-shore positions of 1.06–2.22 m, dune elevation RMSDs of 0.40–0.61 m, and beach slope RMSDs of 0.01–0.05 m/m. Satellite-derived DSMs generated with this workflow thus have the potential to contribute to efforts by coastal scientists and managers to understand the “now-state” of their coastlines and employ cost effective adaptive management techniques.

高分辨率地形数据对于确定海滩系统对海岸灾害的脆弱性至关重要。在这项工作中，美国北卡罗来纳州鸭子市沿海环境的五个数字表面模型（DSMs）是使用完全基于远程摄影测量的工作流程生成的，该工作流程应用于立体卫星图像，并与由车载激光雷达（CLARIS）收集的海滩表面和沙丘的激光雷达衍生数字高程模型（dem）进行比较。该工作流程采用autoGCP优化方法，自动识别背景区域数据集和新卫星图像之间的匹配特征，从而消除了手动测量或提取结合点的需要。与最接近的CLARIS DEM相比，所得dsm的均方根差（rmsd）为0.30-0.41 m。在14天至4年的时间尺度上，尽管卫星DSMs在海滩表面上含有一些小尺度的噪声，但形态变化与激光雷达衍生的形态变化具有良好的相关性（R2 = 0.68−0.74）。跨岸体积变化的rmsd在6.77 ~ 21.59 m3/m之间。提取与海岸灾害评估相关的海岸形态参数（沙丘顶部位置和海拔、沙丘脚趾位置和海滩坡度），并与移动或空中激光雷达调查进行比较。卫星衍生参数捕获了观测到的各参数沿岸变化，沙丘顶和沙丘顶跨岸位置rmsd为1.06 ~ 2.22 m，沙丘高程rmsd为0.40 ~ 0.61 m，海滩坡度rmsd为0.01 ~ 0.05 m/m。因此，由这一工作流程产生的卫星衍生的dsm有可能有助于沿海科学家和管理人员努力了解其海岸线的“现在状态”，并采用具有成本效益的适应性管理技术。

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引用次数: 0

Bragg resonant reflection characteristics of the trapezoidal submerged bars on flat and sloped terrain 平坦和倾斜地形下梯形淹没杆的Bragg谐振反射特性

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-01-30 Epub Date: 2025-11-24 DOI: 10.1016/j.coastaleng.2025.104914

Mi-An Xue , Yulu Liang , Jinhai Zheng , Xiaoli Yuan , Cheng Liu

Bragg resonance reflection on flat terrain has been more extensively investigated. However, in reality, offshore sea areas generally have sloping bathymetry. In this study, the Funwave-TVD model, based on the Boussinesq equation is employed to investigate the Bragg resonance reflection characteristics of trapezoidal Bragg submerged bars on flat and sloped terrain. The model is first validated against available experimental data, showing good agreement. Subsequently, the Bragg resonance characteristics on flat and sloped terrain are compared to reveal the influence of slope on Bragg resonance reflection behavior. The coupling effect of sloped terrain and Bragg submerged bars affects the reflected wave height in front of the bars, the deformation of wave at the bar crest, and the phase difference of the wave behind the bars. The influence of submerged bar structures on sloped terrain on the Bragg resonance reflection is also investigated. The results show that increasing the number of submerged bars, their height, top width, and the seabed slope gradient leads to higher reflected wave heights and lower transmitted wave heights. The transmission coefficient increases with greater distance between the submerged bars, and the conditions for the occurrence of Bragg resonance reflection are not limited to a single distance value but exist within a range.

平坦地形上的布拉格共振反射已经得到了更广泛的研究。然而，在现实中，近海海域通常具有倾斜的水深测量。本文采用基于Boussinesq方程的Funwave-TVD模型研究了平坦和倾斜地形上梯形Bragg淹没杆的Bragg共振反射特性。该模型首先与现有的实验数据进行了验证，显示出良好的一致性。随后，比较了平坦和倾斜地形下的Bragg谐振特性，揭示了坡度对Bragg谐振反射行为的影响。坡面地形与Bragg淹没沙洲的耦合效应影响了沙洲前的反射波高、沙洲波峰处的波变形以及沙洲后的波相位差。本文还研究了坡面上的淹没杆结构对Bragg共振反射的影响。结果表明：增大潜坝的数量、高度、顶宽和海底坡度，反射波高增大，透射波高减小；透射系数随潜杆间距离的增大而增大，发生布拉格共振反射的条件并不局限于单一距离值，而是存在于一定范围内。

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引用次数: 0

A three-dimensional process-based morphodynamic model on orthogonal unstructured grids for coastal applications 基于正交非结构网格的三维过程形态动力学模型

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-01-30 Epub Date: 2025-11-27 DOI: 10.1016/j.coastaleng.2025.104915

Johan Reyns , Bert Jagers , Roshanka Ranasinghe , Herman Kernkamp , Dano Roelvink

This study presents a 3D process-based morphodynamic model that uses orthogonal unstructured grids. It is designed for coastal applications involving complex bathymetry and varying spatial scales. The model extends the Delft3D-FM framework by incorporating full 3D representation of wave, wind, and density-driven effects in the short-wave-averaged, non-linear shallow water equations. The framework includes expressions for wave and roller effects on flow forcing, turbulence, and bed shear stress, and integrates sediment transport and morphodynamic feedback. Multi-fraction sediment transport is supported, and the model tracks stratigraphy through a layered bed composition framework. Features such as infragravity wave dynamics, sediment mass slumping, swash zone slope nudging and morphological acceleration techniques are incorporated to better capture long-term morphological trends as well as storm erosion. The framework supports in-memory model coupling and is fully parallelized, enabling efficient, large-scale simulations. Model verifications presented here include analytical benchmarks and comparisons with laboratory and field observations, demonstrating reliable reproduction of wave–current interaction, sediment transport rates, and bed level changes. The model has the potential to bridge the gap between high-resolution event-scale modelling and long-term morphodynamic prediction, offering a flexible framework to study coastal sedimentary dynamics.

本研究提出了一个基于三维过程的形态动力学模型，该模型使用正交非结构化网格。它是为涉及复杂测深和不同空间尺度的沿海应用而设计的。该模型扩展了Delft3D-FM框架，在短波平均、非线性浅水方程中加入了波浪、风和密度驱动效应的完整3D表示。该框架包括波浪和滚子对流动强迫、湍流和河床剪切应力的影响表达式，并整合了泥沙输运和形态动力反馈。该模型支持多组分沉积物输运，并通过层状地层组成框架跟踪地层。结合了亚重力波动力学、沉积物滑坡、冲积带斜坡推动和形态加速技术等特征，以更好地捕捉长期形态趋势和风暴侵蚀。该框架支持内存中的模型耦合，并完全并行化，从而实现高效、大规模的模拟。本文提出的模型验证包括分析基准和与实验室和现场观测的比较，证明了波流相互作用、沉积物输运率和床面变化的可靠再现。该模型有可能弥合高分辨率事件尺度建模和长期形态动力学预测之间的差距，为研究海岸沉积动力学提供了一个灵活的框架。

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引用次数: 0

The Depth-Semi-Averaged model: Benchmarking and applications to 2D and 3D problems 深度-半平均模型：对2D和3D问题的基准和应用

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-01-30 Epub Date: 2025-10-14 DOI: 10.1016/j.coastaleng.2025.104893

M. Antuono , A. Lucarelli , G. Colicchio , M. Brocchini

The present work provides a number of applications of the Depth-Semi-Averaged model described in Antuono et al. (2022) for different wave conditions and geometries. These include analytical test cases, experimental benchmarks in 2D and 3D frameworks, and simulations of wave dynamics at a real coastal site. Breaking and non-breaking waves are considered, depending on the specific problem under investigation. The aim of the work is to provide an overview of the model potentialities and limits of application and to highlight its similarities and differences in comparison to existing non-hydrostatic schemes. More specifically, the model accurately captures wave propagation phenomena, including refraction and dispersion in non-breaking cases, and demonstrates satisfactory performance in reproducing wave decay caused by turbulence during breaking.

目前的工作提供了Antuono等人（2022）中描述的深度半平均模型在不同波浪条件和几何形状下的许多应用。其中包括分析测试案例，2D和3D框架的实验基准，以及在真实海岸现场的波浪动力学模拟。根据所研究的具体问题，考虑破碎波和非破碎波。这项工作的目的是概述模型的潜力和应用的限制，并突出其与现有非流体静力方案的异同。更具体地说，该模型准确地捕获了波的传播现象，包括非破裂情况下的折射和色散，并在再现破裂时湍流引起的波衰减方面表现出令人满意的性能。

引用次数: 0

Exploring a conservative staggered scheme for Boussinesq-type equations: Insights into numerical diffusion, dispersion, and wave-breaking 探索boussinesq型方程的保守交错格式：对数值扩散，色散和破波的见解

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-01-30 Epub Date: 2025-09-28 DOI: 10.1016/j.coastaleng.2025.104880

Fatima-Zahra Mihami , Volker Roeber

Accurate and efficient modeling of coastal wave transformation, particularly under wave-breaking conditions, remains a major challenge for Boussinesq-type models. To address this, we introduce and validate a conservative staggered-grid scheme to discretize a set of weakly nonlinear Boussinesq-type equations. The presented approach revisits the staggered finite-difference strategy by ensuring a momentum-conserving solution designed to enhance numerical stability and improve shock-capturing properties. The scheme’s performance is assessed through a series of numerical tests involving monochromatic and spectral linear wave propagation. These tests demonstrate that the conservative staggered scheme is much less sensitive to grid resolution, resulting in approximately one order of magnitude lower numerical diffusion in contrast to the well-established HLLC scheme, while maintaining comparable dispersive accuracy despite using a lower-order spatial reconstruction. Additionally, the scheme introduces a slight negative phase error that compensates for the positive dispersion error inherent in the underlying equations, resulting in improved overall phase accuracy relative to the HLLC scheme. Beyond linear wave propagation, the numerical approach is validated against standard benchmark tests with solitary and spectral breaking waves. In these highly non-linear cases, coupling the conservative staggered scheme with a turbulent kinetic energy (TKE)-based eddy viscosity model yields localized and physically consistent dissipation while preserving the dispersive characteristics of the solution. Compared to conventional hybrid breaking approaches, the TKE-based closure provides enhanced stability, reduced grid sensitivity, and a more accurate representation of energy dissipation during wave breaking. These results underscore the potential of the conservative staggered scheme as an efficient and robust framework for computing complex coastal and nearshore wave processes.

对于boussinesq型模型来说，准确和有效地模拟海岸波的变换，特别是在破波条件下，仍然是一个主要的挑战。为了解决这个问题，我们引入并验证了一种保守交错网格方案来离散一组弱非线性boussinesq型方程。所提出的方法通过确保动量守恒解决方案来提高数值稳定性和改善冲击捕获特性，重新审视了交错有限差分策略。通过一系列涉及单色和光谱线性波传播的数值测试来评估该方案的性能。这些测试表明，保守交错方案对网格分辨率的敏感性要低得多，与已建立的HLLC方案相比，其数值扩散大约低一个数量级，尽管使用低阶空间重建，但仍保持相当的色散精度。此外，该方案引入了一个轻微的负相位误差，以补偿底层方程中固有的正色散误差，从而相对于HLLC方案提高了总体相位精度。除了线性波传播之外，数值方法还通过孤立波和谱破碎波的标准基准测试进行了验证。在这些高度非线性的情况下，将保守交错方案与基于湍流动能（TKE）的涡流粘度模型相结合，可以在保持溶液色散特性的同时产生局部和物理一致的耗散。与传统的混合破波方法相比，基于tke的闭合方法提供了更高的稳定性，降低了网格灵敏度，并且更准确地表示了破波过程中的能量耗散。这些结果强调了保守交错方案作为计算复杂海岸和近岸波浪过程的有效和稳健框架的潜力。

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引用次数: 0

A multi-tiered Bayesian network coastal compound flood analysis framework 多层贝叶斯网络沿海复合洪水分析框架

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-01-30 Epub Date: 2025-10-14 DOI: 10.1016/j.coastaleng.2025.104895

Ziyue Liu , Meredith L. Carr , Norberto C. Nadal-Caraballo , Luke A. Aucoin , Madison C. Yawn , Michelle T. Bensi

Coastal compound floods (CCFs) are triggered by the interaction of multiple coastal and inland mechanisms, such as storm surges, storm rainfall, tides, and river flow. These events can bring significant damage to communities, and there is an increasing demand for accurate and efficient probabilistic analyses of CCFs to support risk assessments and decision-making. In this study, a multi-tiered Bayesian network (BN) CCF analysis framework is established. In this framework, conceptual designs of multiple tiers of BN models with varying complexities are developed for application with varying levels of data availability and resources. A case study is conducted in New Orleans, LA, with three tiers of BN models constructed to demonstrate this framework. In the Tier-1 BN model, storm surges and river flow are incorporated based on hydrodynamic simulations. A seasonality node is used to capture the dependence between concurrent river flow and tropical cyclone (TC) parameters. In the Tier-2 BN model, joint distribution models of TC parameters are built for separate TC intensity categories. TC-induced rainfall is modeled as input to hydraulic simulations. In the Tier-3 BN model, potential variations of meteorological conditions are incorporated by quantifying their effects on TC activity and coastal water level. Flood antecedent conditions are also incorporated to more completely represent the conditions contributing to flood severity. In this case study, a series of joint distribution, numerical, machine learning, and experimental models are used to compute conditional probability tables needed for the BNs. A series of probabilistic analyses is performed based on these BN models, including CCF hazard curve construction and CCF deaggregation. The results of the analysis demonstrate the promise of this framework in performing CCF hazard analysis under varying levels of resource availability and project needs.

沿海复合洪水是由风暴潮、暴雨、潮汐和河流流量等多种沿海和内陆机制共同作用引发的。这些事件可能给社区带来重大损害，因此越来越需要对CCFs进行准确和有效的概率分析，以支持风险评估和决策。本研究建立了多层贝叶斯网络（BN） CCF分析框架。在该框架中，针对不同数据可用性和资源水平的应用，开发了具有不同复杂性的多层BN模型的概念设计。在LA新奥尔良进行了一个案例研究，构建了三层BN模型来演示该框架。在Tier-1 BN模式中，基于水动力模拟纳入了风暴潮和河流流量。季节性节点用于捕获同期河流流量与热带气旋参数之间的依赖关系。在Tier-2 BN模型中，针对不同的TC强度类别建立了TC参数的联合分布模型。tc引起的降雨被建模为水力模拟的输入。在第3层BN模式中，通过量化气象条件对TC活动和沿海水位的影响，纳入了气象条件的潜在变化。洪水前条件也被纳入，以更完整地代表导致洪水严重程度的条件。在本案例研究中，使用了一系列联合分布、数值、机器学习和实验模型来计算bn所需的条件概率表。基于这些BN模型进行了一系列的概率分析，包括CCF危险曲线的构建和CCF的解聚。分析结果表明，在不同水平的资源可用性和项目需求下，该框架在进行CCF危害分析方面具有前景。

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引用次数: 0

Fluid-structure interaction of European brushwood groynes in waves and tides: Simulating natural decay 波浪和潮汐中欧洲灌丛石坝的流固相互作用：模拟自然衰变

IF 4.5 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering

Pub Date : 2026-01-30 Epub Date: 2025-11-14 DOI: 10.1016/j.coastaleng.2025.104912

Felix Spröer , Oliver Lojek , Jan Malte Paulsen , Christina Bischoff , Nils Goseberg

Tidal mudflats and salt marshes adapt to sea level rise (SLR) through vertical growth and inland retreat. However, in areas of coastal squeeze where retreat is constrained, SLR may exceed vertical accretion due to limited sediment supply or unfavourable hydrodynamics. In Northern Europe, brushwood groyne fields, historically used for land reclamation, have been constructed to enhance sedimentation and foreshore resilience. These structures, comprising rows of wooden posts with compacted brushwood bundles, create hydrodynamically quiescent zones that facilitate suspended sediment deposition and reduce sediment remobilization by dampening waves and currents. Scholarly and practical interest in optimizing brushwood groyne arrangements continues to rise in the framework of nature-based solutions. Their biodegradable material supports ecological integration but limits structural lifespan and alters flow resistance over time. Thus, a detailed assessment of their flow-retentive properties, accounting for deterioration, is essential for optimization. This study addresses the knowledge gap regarding the evolution of flow resistance in European brushwood groynes. The study assesses current- and wave-structure interactions together with a quantification of material parameters for the confined brushwood along the vertical structure using two laboratory campaigns. Parametrizations are provided through Darcy–Forchheimer and wave transformation coefficients. A Forchheimer coefficient of

β = 1.44

was found to best represent a range of groynes with varying porosities and compositions. Parametrized hyperbolic fits described both wave reflection and transmission behaviour. All parametrizations enable improved design and longevity of brushwood groynes, enhancing their ability to support mudflat and salt marsh resilience, thereby preserving both their ecological and coastal protection functions.

潮汐泥滩和盐沼通过垂直生长和内陆退缩来适应海平面上升。然而，在退缩受限的海岸挤压区，由于泥沙供应有限或不利的水动力，SLR可能超过垂直增生。在北欧，历史上用于土地复垦的灌丛林岗地已经建成，以增强沉积和前海岸的恢复能力。这些结构由一排排木桩和密实的灌木捆组成，形成了水动力静止区，通过抑制波浪和水流，促进悬浮沉积物沉积，减少沉积物的再流动。在以自然为基础的解决方案框架中，对优化灌丛植被安排的学术和实践兴趣继续上升。它们的可生物降解材料支持生态整合，但限制了结构寿命并随着时间的推移改变了流动阻力。因此，详细评估它们的保流性能，考虑恶化，是优化的必要条件。本研究解决了关于欧洲灌丛沟壑区流动阻力演变的知识差距。该研究评估了电流和波浪结构的相互作用，并利用两个实验室活动对沿垂直结构的受限灌丛木的材料参数进行了量化。通过Darcy-Forchheimer和波变换系数提供参数化。Forchheimer系数β=1.44最能代表不同孔隙度和成分的地层。参数化双曲拟合描述了波的反射和透射行为。所有参数化都可以改善灌丛石坝的设计和使用寿命，增强其支持泥滩和盐沼的恢复能力，从而保持其生态和海岸保护功能。

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引用次数: 0