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潮流能水轮机阵列水动力与布局优化研究进展

河海大学学报（自然科学版） 2024年第3期52卷 79-87页

作者：张继生俞诗琪张灿李浩然王芳宇河海大学海岸灾害及防护教育部重点实验室江苏南京210098 河海大学港口海岸与近海工程学院江苏南京210098 深海技术科学太湖实验室江苏无锡214082

概述了潮流能水轮机阵列的水动力特性,总结了不同横向、纵向间距下水轮机尾流变化的一般规律,梳理了水轮机阵列布局的优化方法,从人工传统优化阵列布局与计算机自动优化阵列布局两方面回顾了水轮机阵列单目标优化与多目标优化的研究进... 详细信息

概述了潮流能水轮机阵列的水动力特性,总结了不同横向、纵向间距下水轮机尾流变化的一般规律,梳理了水轮机阵列布局的优化方法,从人工传统优化阵列布局与计算机自动优化阵列布局两方面回顾了水轮机阵列单目标优化与多目标优化的研究进展。人工传统布局结构简单且易于操作,有比较强的工程实践性,但物理试验可限制的约束条件有限,难以模拟阵列在真实海况下的发电情况;自动优化布局相比于人工传统布局更具有现实意义,但依然面临经济模块因素缺乏、多目标内容待完善、理论与实践未统一、前期准备时间较长等诸多挑战。

关键词：潮流能水轮机尾流规律阵列优化单目标优化多目标优化

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湿塘生境质量特征与营建管理策略——以重庆海绵城市试点为例

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风景园林 2024年第9期31卷 76-85页

作者：张继升刘家琳孟瑶周剑锋重庆市沙坪坝区住房和城乡建设委员会西南大学园艺园林学院西南大学风景园林系重庆市住房和城乡建设行政审批服务中心

【目的】中国海绵城市建设已逐步进入精细化营建阶段。湿塘作为具有常水位的海绵生境,在城市环境中有较大的生态服务潜力,分析与明确湿塘生境质量特征和问题,有利于推进海绵城市精细化发展。【方法】立足重庆海绵城市试点区域中已建成... 详细信息

【目的】中国海绵城市建设已逐步进入精细化营建阶段。湿塘作为具有常水位的海绵生境,在城市环境中有较大的生态服务潜力,分析与明确湿塘生境质量特征和问题,有利于推进海绵城市精细化发展。【方法】立足重庆海绵城市试点区域中已建成的湿塘生境,对湿塘植物、土壤、水体进行监测,通过M-Godorn稳定性测算法、内梅罗肥力指数法、内梅罗污染指数法分别评估植物、土壤、水体生境质量,探究建设用地与非建设用地中湿塘生境质量特征的差异。【结果】在监测期中,湿塘植物群落稳定性较低,欧氏距离范围为17.58~27.00,非建设用地中湿塘的植物群落稳定性、入侵植物盖度显著高于建设用地。湿塘土壤压实问题严重,容重均值为1.445 g/cm^(3);50%土样的饱和入渗率为6.604 mm/h,入渗能力偏低;土样的综合肥力指数在0.532~1.198之间,肥力较差。湿塘整体水质较好,内梅罗污染指数在1.087~3.757之间。前置塘结构有利于湿塘水质的提升,湿塘表面蓄水层周长面积比与内梅罗污染指数呈显著负相关。【结论】通过合理的营建与维护可以提升湿塘生境质量,如控制湿塘平面与竖向布局、加强植物设计与管理、应用人工有机堆肥与土壤管理等技术方法,研究结果对海绵城市精细化营建及管理有重要参考价值。

关键词：海绵城市海绵生境生境监测湿塘生境营建

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水泥土大直径单桩水平承载性能试验研究

东南大学学报（自然科学版） 2024年第1期54卷 142-148页

作者：高鲁超戴国亮姚中原张继生王安辉陈浩河海大学海岸灾害及防护教育部重点实验室南京210098 华能国际电力江苏能源开发有限公司清洁能源分公司南京210009 东南大学土木工程学院南京211189 中建安装集团有限公司南京210023

为研究水泥土中大直径单桩的水平承载性能,开展了水泥土中大直径单桩水平承载性能离心机试验,分析了加固前后桩基水平承载力、弯矩和水平土抗力-水平位移(p-y)曲线的变化规律.基于黏土典型p-y曲线,考虑土体径向非均质性和桩径效应,修正... 详细信息

为研究水泥土中大直径单桩的水平承载性能,开展了水泥土中大直径单桩水平承载性能离心机试验,分析了加固前后桩基水平承载力、弯矩和水平土抗力-水平位移(p-y)曲线的变化规律.基于黏土典型p-y曲线,考虑土体径向非均质性和桩径效应,修正初始地基反力模量和极限土抗力,提出了一种适用于水泥土加固桩水平承载力的计算模型.结果表明,相比未加固桩,加固桩的水平承载力明显提升,单桩初始刚度和极限承载力分别增加2.61倍和6.29倍.加固桩和未加固桩的桩身弯矩随荷载和深度变化趋势大致相同,但加固桩的最大弯矩位于泥面附近.水泥土加固可以提高桩身p-y曲线的初始刚度和极限土抗力,进而提高桩基水平承载力.计算值与实测值吻合较好,从而验证了所提计算模型的合理性.

关键词：海上风电大直径单桩水泥土水平承载性能离心机试验

Tidal Current and Tidal Energy Changes Imposed by a Dynamic Tidal Power System in the Taiwan Strait, China

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Journal of Ocean University of China 2017年第6期16卷 953-964页

作者： DAI Peng zhang jisheng ZHENG Jinhai State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai University Nanjing 210098P. R. China College of Harbor Coastal and Offshore Engineering Hohai University Nanjing 210098 P. R. China Nanjing Hydraulic Research Institute Nanjing 210029 P. R. China

The Taiwan Strait has recently been proposed as a promising site for dynamic tidal power systems because of its shallow depth and strong tides. Dynamic tidal power is a new concept for extracting tidal potential energy in which a coast-perpendicular dike is used to create water head and generate electricity via turbines inserted in the dike. Before starting such a project, the potential power output and hydrodynamic impacts of the dike must be assessed. In this study, a two-dimensional numerical model based on the Delft3 D-FLOW module is established to simulate tides in China. A dike module is developed to account for turbine processes and estimate power output by integrating a special algorithm into the model. The domain decomposition technique is used to divide the computational zone into two subdomains with grid refinement near the dike. The hydrodynamic processes predicted by the model, both with and without the proposed construction, are examined in detail, including tidal currents and tidal energy flux. The predicted time-averaged power yields with various opening ratios are presented. The results show that time-averaged power yield peaks at an 8% opening ratio. For semidiurnal tides, the flow velocity increases in front of the head of the dike and decreases on either side. For diurnal tides, these changes are complicated by the oblique incidence of tidal currents with respect to the dike as well as by bathymetric features. The dike itself blocks the propagation of tidal energy flux.

关键词： dynamic tidal power ocean renewable energy Taiwan Strait Delft3D hydrodynamic impact

Numerical Simulation and Analysis of Storm Surges Under Different Extreme Weather Event and Typhoon Experiments in the South Yellow Sea

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Journal of Ocean University of China 2022年第1期21卷 1-14页

作者： zhang Mingzong ZHOU Chunyan zhang jisheng zhang Xinzhou TANG Zihao Key Laboratory of Ministry of Education for Coastal Disaster and Protection Hohai UniversityNanjing 210024China College of Harbour Coastal and Offshore EngineeringHohai UniversityNanjing 210024China Key Laboratory of Port Waterway and Sedimentation Engineering of the Ministry of TransportNanjing Hydraulic Research InstituteNanjing 210029China Department of Civil and Environment Engineering University of AucklandAuckland 1023New Zealand

In this study,a coupled tide-surge-wave model was developed and applied to the South Yellow *** coupled model simulated the evolution of storm surges and waves caused by extreme weather events,such as tropical cyclones,cold waves,extratropical cyclones coupled with a cold wave,and tropical cyclones coupled with a cold *** modeled surge level and significant wave height matched the measured data *** results of the typhoon with different intensities revealed that the radius to the maximum wind speed of a typhoon with 1.5 times wind speed decreased,and its influence range was farther away from the Jiangsu coastal region;moreover,the impact on surge levels was ***,eight hypothetical typhoons based on Typhoon Chan-hom were designed to investigate the effects of varying typhoon tracks on the extreme value and spatial distribution of storm surges in the offshore area of Jiangsu *** typhoon along path 2 mainly affected the Rudong coast,and the topography of the Rudong coast was conducive to the increase in surge ***,the typhoon along path 2 induced the largest surge level,which reached up to 2.91 m in the radial sand ridge *** maximum surge levels in the Haizhou Bay area and the middle straight coastline area reached up to 2.37 and 2.08 m,*** terms of typhoons active in offshore areas,the radial sand ridge area was most likely to be threatened by typhoon-induced storm surges.

关键词： Jiangsu coast South Yellow Sea extreme weather events storm surge numerical experiments

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红砖古厝元素在鞋靴设计中的应用

中国皮革 2024年第5期53卷 64-68页

作者：郑子怡张吉生泉州师范学院纺织与服装学院福建泉州362000

本文以闽南红砖古厝的装饰纹样为切入点,系统阐述了闽南红砖古厝的建筑特色、艺术价值和红砖装饰纹样样式;着重分析红砖四瓣柿蒂纹装饰纹样,对四瓣柿蒂纹和相关装饰元素进行外观特征提取和纹样的解构,让红砖古厝元素的图案与色彩通过现... 详细信息

本文以闽南红砖古厝的装饰纹样为切入点,系统阐述了闽南红砖古厝的建筑特色、艺术价值和红砖装饰纹样样式;着重分析红砖四瓣柿蒂纹装饰纹样,对四瓣柿蒂纹和相关装饰元素进行外观特征提取和纹样的解构,让红砖古厝元素的图案与色彩通过现代设计的重组更好地与鞋靴设计结合。在现代鞋靴设计中融入红砖古厝元素,既能提高鞋靴设计的艺术风格,增加鞋靴产品的市场竞争力,又能更好地传播与深化人们对闽南红砖古厝这一非物质文化遗产的认知。

关键词：红砖古厝鞋靴设计四瓣柿蒂纹闽南文化图案设计

Numerical Hydrodynamics Study Around Turbine Array of Tidal Stream Farm in Zhoushan, China

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Journal of Ocean University of China 2017年第4期16卷 703-708页

作者： YU Zhiwen zhang jisheng ZHAI Yanyan zhang Tiantian ZHENG Jinhai State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai University Nanjing 210098 P. R. China College of Harbor Coastal and Offshore Engineering Hohai University Nanjing 210098 P. R. China Powerchina Water Environment Governance Shenzhen 518100 P. R. China China Three Gorges Corporation Beijing 100038 P. R. China

In recent decades,great efforts have been made to efficiently explore tidal stream energy due to its unique advantages of easy prediction and great *** recently launched a national tidal stream farm demonstration project in the waterway between Putuoshan and Hulu Islands in the Zhoushan *** deployment of the turbine array,it is necessary to understand the hydrodynamic changes associated with the construction of a turbine *** this study,we developed a depth-averaged hydrodynamics model that solves the shallow water governing equations to simulate the tidal hydrodynamics around the Zhoushan *** simulation results agree with field data in terms of the water elevation and stream *** considered two types of turbine arrays in this study and investigated their impacts on the local *** general,the stream velocity in the northern and southern areas is reduced due to the power take-off of the turbine array,whereas stream velocity in the western and eastern areas is slightly increased due to the blockage impact of the turbine array.

关键词： tidal stream farm turbine array tidal hydrodynamics numerical simulation demonstration project

添加碳粉对AZ91镁合金微观组织与力学性能的影响

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热加工工艺 2024年第3期53卷 135-139,144页

作者：王殿君胡茂良张明秋王洪英张吉生高恩达黑龙江工业学院现代制造工程学院黑龙江鸡西158100 哈尔滨理工大学材料工程与化工学院黑龙江哈尔滨151000

研究了不同含量的碳粉细化剂对AZ91镁合金的显微组织与力学性能的影响规律。对AZ91合金进行微观组织观察、SEM分析和力学性能测试。结果表明:随着细化剂含量的增加,AZ91合金的晶粒尺寸显著减小。当添加0.5wt%细化剂时,AZ91合金的晶粒尺... 详细信息

研究了不同含量的碳粉细化剂对AZ91镁合金的显微组织与力学性能的影响规律。对AZ91合金进行微观组织观察、SEM分析和力学性能测试。结果表明:随着细化剂含量的增加,AZ91合金的晶粒尺寸显著减小。当添加0.5wt%细化剂时,AZ91合金的晶粒尺寸减小到184μm,细化效率达到了67%。当添加0.3wt%细化剂时,AZ91合金的抗拉强度和伸长率达到最高的150MPa和2.1%,相比于未添加细化剂的,其分别提升了28%和50%。C元素与Al元素反应得到了Al_(4)C_(3)相,可以作为AZ91合金的异质形核位点,起到了晶粒细化的作用,并显著提升AZ91合金的力学性能。

关键词： AZ91镁合金碳质细化剂晶粒细化力学性能

膝关节平衡稳定训练联合针刺治疗膝骨关节炎的疗效观察

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浙江临床医学 2024年第9期26卷 1307-1308页

作者：张继升徐立雷林可杨一令林咸明浙江中医药大学第三临床医学院 310053

目的观察膝关节平衡稳定训练联合针刺治疗膝骨关节炎(KOA)的疗效。方法选取2023年3月至2024年3月KOA患者50例,采用随机数字表法分为观察组和对照组各25例。对照组予单纯针刺治疗,观察组予膝关节平衡稳定训练联合针刺治疗。比较两组患者... 详细信息

目的观察膝关节平衡稳定训练联合针刺治疗膝骨关节炎(KOA)的疗效。方法选取2023年3月至2024年3月KOA患者50例,采用随机数字表法分为观察组和对照组各25例。对照组予单纯针刺治疗,观察组予膝关节平衡稳定训练联合针刺治疗。比较两组患者膝骨关节炎症程度及治疗总有效率。结果观察组治疗总有效率高于对照组,差异有统计学意义(P<0.05)。两组患者治疗后2、4周WOMAC评分比较,差异有统计学意义(P<0.05)。结论采用膝关节平衡稳定训练联合针刺治疗KOA患者达2周及以上的效果优于单纯针刺治疗,值得临床推广。

关键词：膝关节平衡稳定训练针刺膝骨关节炎