Journal of Hydrodynamics最新文献_第8页

Experimental investigation of a single coarse particle settling in a laterally vibrating riser 单个粗颗粒在横向振动提升管内沉降的实验研究

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2026-01-29 DOI: 10.1007/s42241-026-0006-0

Ming-zhu Wei, Xu Wang, Jin-long Duan, Ji-fu Zhou, Jia-jun Jiao, Zi-han Sun

{"title":"Experimental investigation of a single coarse particle settling in a laterally vibrating riser","authors":"Ming-zhu Wei, Xu Wang, Jin-long Duan, Ji-fu Zhou, Jia-jun Jiao, Zi-han Sun","doi":"10.1007/s42241-026-0006-0","DOIUrl":"10.1007/s42241-026-0006-0","url":null,"abstract":"<div><p>During the transportation of ores from the deep seabed to the surface via lifting risers, vibrations induced by ocean currents and waves can exert an effect on the movement characteristics of ores inside, such as vertical drag, lateral carrying, and collisions between the ore particle and inner wall of the riser. To investigate the impact of riser vibration on the ore motion, experiments were conducted focusing on the behavior of a single ore particle settling in a laterally vibrating riser. Experimental results show that as the riser’s vibration frequency and amplitude increase, the amplitude of particle’s velocity in the vibration direction increases, while the mean value of settling velocity decreases, accompanied by larger settling velocity fluctuations. Particle-wall collisions alter the phase relationship, shifting the particle’s lateral velocity from trailing to leading that of the riser. These collisions further reduce the mean settling velocity. Additionally, an increase in the diameter ratio rises the average of settling velocity and reduces its fluctuation amplitude.</p></div>","PeriodicalId":637,"journal":{"name":"Journal of Hydrodynamics","volume":"37 6","pages":"1043 - 1051"},"PeriodicalIF":3.5,"publicationDate":"2026-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371836","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}

引用次数: 0

A multi-resolution two-phase smoothed particle hydrodynamics method for modeling breaking bow waves 一种多分辨率两相光滑粒子流体力学方法模拟破碎弓形波

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2026-01-29 DOI: 10.1007/s42241-026-0005-1

Wen-hao Tang, Hua Liu

{"title":"A multi-resolution two-phase smoothed particle hydrodynamics method for modeling breaking bow waves","authors":"Wen-hao Tang, Hua Liu","doi":"10.1007/s42241-026-0005-1","DOIUrl":"10.1007/s42241-026-0005-1","url":null,"abstract":"<div><p>When a ship sails at high speed, breaking bow waves are formed at the bow, resulting in the component of ship resistance associated with wave-breaking-induced energy dissipation and air entrainment. In this paper, we propose a multi-resolution multi-graphics processing unit two-phase smoothed particle hydrodynamics (SPH) method to simulate the breaking bow waves of a KRISO Container Ship (KCS) model at different Froude numbers. Simulations of five different Froude numbers (<i>Fr</i> = 0.377, 0.400, 0.424, 0.450, 0.470) are carried out. The total number of particles reaches 1.1×10<sup>8</sup>. The computed wave elevations are compared with the experimental results, which were obtained with the KCS model in a circulating water channel using a binocular stereo reconstruction method. A good agreement is found. The mean wave elevation and its standard deviation, the velocity field, and the vortex structures are analyzed. The results show that increasing the Froude number can lead to more intense fluctuations in wave elevation. The breaking bow waves at the first two Froude numbers are classified as spilling breakers, while those at the last three Froude numbers are plunging breakers. The area of the cavity formed at the impact cross-section increases with the increase of the Froude number. Three main vortex structures are identified for plunging breakers. Vorticity is distributed at the wave crest for spilling breakers, while for plunging breakers, a significant amount of vorticity is found around the cavity.</p></div>","PeriodicalId":637,"journal":{"name":"Journal of Hydrodynamics","volume":"37 6","pages":"1052 - 1066"},"PeriodicalIF":3.5,"publicationDate":"2026-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371843","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}

引用次数: 0

A weak-scatterer solution to nonlinear wave-body interaction based on a 3-D immersed-boundary adaptive harmonic polynomial cell method 基于三维浸入边界自适应谐波多项式单元法的非线性波体相互作用弱散射解

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2026-01-23 DOI: 10.1007/s42241-026-0002-4

Chao Tong, Yanlin Shao, Harry Bradford Bingham

引用次数: 0

Numerical study of bubble collapse near a deformable wall using a partitioned coupling and a penalization method 用分区耦合和惩罚法对变形壁面附近气泡崩塌的数值研究

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2026-01-23 DOI: 10.1007/s42241-026-0003-3

Lucas Ménez, Marianne Beringhier, Philippe Parnaudeau, Eric Goncalves

{"title":"Numerical study of bubble collapse near a deformable wall using a partitioned coupling and a penalization method","authors":"Lucas Ménez, Marianne Beringhier, Philippe Parnaudeau, Eric Goncalves","doi":"10.1007/s42241-026-0003-3","DOIUrl":"10.1007/s42241-026-0003-3","url":null,"abstract":"<div><p>A numerical approach is developed for the simulation of fluid-structure interaction (FSI) problems and is applied to bubble collapse near a deformable wall, the phenomenon responsible for cavitation erosion. The present method is based on a partitioned coupling: The fluid flow is resolved in an in-house finite volume solver and structure dynamics are computed in FEniCS, an open-source finite element solver. Data communication between the two solvers and the space-time coupling of their respective solutions are handled by the coupling library preCICE. The novelty of the present strategy lies in the use of a penalization method to represent the solid body within the fluid solver, allowing the use of a fixed Cartesian grid for increased accuracy and reduced computational cost, as no remeshing is required for moving boundaries. Bubble collapse generates high-intensity shock waves that impact the surrounding wall, resulting in high equivalent stress in the material. When it exceeds the material yield strength, a cavitation pit forms. One-way and two-way coupling simulations are compared in order to demonstrate the need to consider strong coupling for this type of FSI problem. The influence of the initial bubble-wall distance on the resulting material damage is investigated.</p></div>","PeriodicalId":637,"journal":{"name":"Journal of Hydrodynamics","volume":"37 6","pages":"1087 - 1094"},"PeriodicalIF":3.5,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371847","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}

引用次数: 0

Comparison of dynamic responses of blade during installation process using jack-up and floating vessels 自升式和浮式船安装过程中叶片动力响应的比较

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2026-01-23 DOI: 10.1007/s42241-026-0001-5

Li Yin, Dong-sheng Qiao, Guo-qiang Tang, Lin Lu, Jin-ping Ou

{"title":"Comparison of dynamic responses of blade during installation process using jack-up and floating vessels","authors":"Li Yin, Dong-sheng Qiao, Guo-qiang Tang, Lin Lu, Jin-ping Ou","doi":"10.1007/s42241-026-0001-5","DOIUrl":"10.1007/s42241-026-0001-5","url":null,"abstract":"<div><p>The blade installation system for large offshore wind turbines comprises multiple components and presents considerable operational challenges. This system primarily consists of the installation vessel, the ship-mounted crane, and the double pendulum system, with the transmission of dynamic responses among these components exhibiting significant complexity. Jack-up and floating installation vessels are widely deployed for the installation; however, different types of vessels will produce varying dynamic responses. These distinct responses serve as the motion boundaries of the installation system, ultimately affecting the blade oscillations. Therefore, this investigation develops an analysis program for blade installation and evaluates the dynamic responses of the system when different vessels are employed. The results indicate that, during operation with the jack-up vessel, blade oscillations are mainly governed by the first order mode frequency of the double pendulum system and the turbulent wind frequency. In contrast, when the floating vessel is utilized, the spectral peak frequency of the wave and the natural frequencies of the vessel must also be considered. Moreover, if the spectral peak frequency closely aligns with the first order mode frequency of the double pendulum system and the natural frequencies of the vessel, the blade oscillations will be significantly amplified.</p></div>","PeriodicalId":637,"journal":{"name":"Journal of Hydrodynamics","volume":"37 6","pages":"1067 - 1078"},"PeriodicalIF":3.5,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371837","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}

引用次数: 0

Vortex shedding behind clusters of square cylinders 方形圆柱体后面的漩涡脱落

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2025-12-26 DOI: 10.1007/s42241-025-0073-7

Saad Inam, Cung Nguyen, Changchang Wang, Davide Lasagna, Zheng-Tong Xie

引用次数: 0

Analysis of the causes of pressure pulsation in S-shaped region of a pump turbine based on dynamic mode decomposition 基于动态模态分解的泵水轮机s形区压力脉动原因分析

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2025-12-11 DOI: 10.1007/s42241-025-0069-3

Bo-xing Liu, Jian-jun Feng, Guo-jun Zhu, Wen-hao Cui, Yu-quan Zhang, Xing-qi Luo

{"title":"Analysis of the causes of pressure pulsation in S-shaped region of a pump turbine based on dynamic mode decomposition","authors":"Bo-xing Liu, Jian-jun Feng, Guo-jun Zhu, Wen-hao Cui, Yu-quan Zhang, Xing-qi Luo","doi":"10.1007/s42241-025-0069-3","DOIUrl":"10.1007/s42241-025-0069-3","url":null,"abstract":"<div><p>Operation of pump-turbines in the S-shaped region is characterized by amplified pressure pulsations and grid synchronization challenges, often leading to operational instability and compromised grid compatibility. This study employs dynamic mode decomposition (DMD) method to extract coherent flow structures correlated with dominant pressure pulsation frequencies in the S-shaped region, while experiments have been conducted to validate numerical simulations. Results show that the DMD method can effectively identify characteristic frequencies of complex flows in the S-shaped region: low-frequency pressure pulsations in the vaneless space originate from circumferential transmission component of the water ring over time, which is called the water ring pulsation component. During operation condition transitions, this pulsation component first intensify then attenuate as it moves outward along the guide vanes. The dominant draft tube pressure pulsation frequency driven by vortex rope dynamics induces morphological vortex rope transformations via DMD mode shifts during operational transitions. Runner pressure pulsations within the S-shaped region predominantly stem from rotating stall propagating counter to the runner’s rotation. These findings advance the understanding of S-shaped region flow instabilities, linking component-specific flow structures to global pressure pulsation characteristics, and thereby providing critical insights for operational stability enhancement.</p></div>","PeriodicalId":637,"journal":{"name":"Journal of Hydrodynamics","volume":"37 5","pages":"843 - 858"},"PeriodicalIF":3.5,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145950763","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}

引用次数: 0

Large eddy simulation of cavitating flow in a cone valve with special emphasis on the shear cavitation inside and its effects 锥形阀内空化流动的大涡模拟，重点研究了阀内剪切空化及其影响

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2025-12-11 DOI: 10.1007/s42241-025-0072-8

Si-yu Wei, Chen Lin, Huai-yu Cheng, Bin Ji

{"title":"Large eddy simulation of cavitating flow in a cone valve with special emphasis on the shear cavitation inside and its effects","authors":"Si-yu Wei, Chen Lin, Huai-yu Cheng, Bin Ji","doi":"10.1007/s42241-025-0072-8","DOIUrl":"10.1007/s42241-025-0072-8","url":null,"abstract":"<div><p>Cone valves can meet the needs of large-flow water conveyance systems well, while cavitation inside caused by large flow rate is becoming more and more prominent. The large eddy simulation (LES) approach combined with the Schnerr-Sauer cavitation model was conducted to investigate the cavitating flow in the cone valve. The results show that the cavitation structure inside the cone valve can be divided into relatively stable attached cavitation and shear cavitation. Shear cavitation mostly occurs in quasi-streamwise vortices and elongated circumferential vortices subjected to strong stretching. The vorticity transport equation was utilized to discuss the interaction between shear cavitation and vortex further. The vortex stretching term indicates that the circumferential vortex has a tendency to break along the axis and becomes more three-dimensional when it moves downstream. Shear cavitation will be formed in the broken vortex. The cavity growth leads to a rapid increase in the vortex dilatation term. The baroclinic term has a maximum value when the shear cavitation collapses. Evolution of shear cavitation could increase turbulent pulsation, with the generation of strong turbulent kinetic energy. Turbulence and shear cavitation interact and form a complex flow field structure. In addition, it is found that the second-order conductance of cavitation volume to time is mainly responsible for the pressure pulsation inside, while the geometric parameters of the cone valve on pressure pulsation cannot be ignored as well. Therefore, an improved one-dimensional model is proposed, which verifies the influence of the evolution process of shear cavitation and geometric parameters of the cone valve. The results are helpful in understanding the hydrodynamic and cavitation characteristics inside the cone valve.</p></div>","PeriodicalId":637,"journal":{"name":"Journal of Hydrodynamics","volume":"37 5","pages":"876 - 891"},"PeriodicalIF":3.5,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145950782","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}

引用次数: 0

Enhancing water exchange and environmental sustainability in port design: A case study of Taiping Bay, Dalian Port 港口设计中加强水交换和环境可持续性：以大连港太平湾为例

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2025-12-11 DOI: 10.1007/s42241-025-0070-x

Da-chuan He, Xi Zhang, Ya-kun Liu, Zhi Chen, Xiang-jun Nie, Ke Wang

{"title":"Enhancing water exchange and environmental sustainability in port design: A case study of Taiping Bay, Dalian Port","authors":"Da-chuan He, Xi Zhang, Ya-kun Liu, Zhi Chen, Xiang-jun Nie, Ke Wang","doi":"10.1007/s42241-025-0070-x","DOIUrl":"10.1007/s42241-025-0070-x","url":null,"abstract":"<div><p>The expansion of large-scale ports necessitates a delicate balance between operational efficiency and environmental preservation. Our study tackles this issue by exploring sustainable water exchange optimization in intricate port systems. Focusing on Dalian Port’s Taiping Bay as our research site, we integrate ecological principles into port development and apply a tidal flow model to assess the effects of diverse channel designs on water dynamics. A key advancement of our work is the refinement of the “retention factor” concept and the adaptation of the concentration-water exchange rate equation. This innovative approach allows for a more precise evaluation of water exchange capabilities amidst complex environmental scenarios. Our findings reveal that channel width plays a pivotal role in water exchange efficiency, with a notable plateau effect beyond a threshold that achieves a 90% exchange rate. These insights underscore the potential for design optimization that aligns with ecological sustainability, offering a roadmap for future port developments that prioritize minimal ecological disruption.</p></div>","PeriodicalId":637,"journal":{"name":"Journal of Hydrodynamics","volume":"37 5","pages":"955 - 968"},"PeriodicalIF":3.5,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145950796","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}

引用次数: 0

Discharge coefficient of a bell-mouth shaft with middle piers 中墩钟口轴的流量系数

IF 3.5 3区工程技术

Journal of Hydrodynamics Pub Date : 2025-12-11 DOI: 10.1007/s42241-025-0071-9

Fei Ma, Zi-hang Zhang, Jian-hua Wu

引用次数: 0