云南高校图书馆联盟文献共享服务平台- HYDRAULIC

HYDRAULIC: 作品数：589被引量：1300H指数：14; 导出分析报告; 相关领域：机械工程更多>>; 相关作者：郭勇胡国良谭宗柒杨华勇杨存智更多>>; 相关机构：中南大学北京航空航天大学浙江大学煤炭科学研究总院更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划中国博士后科学基金更多>>

Numerical investigations on performance improvement mechanism of a high-power vertical centrifugal pump with special emphasis on hydraulic component matching: 《Journal of Hydrodynamics》2023年第4期649-667,共19页Gang Yang Xi Shen De-sheng Zhang Wen-hua Luo Jia Meng Xu-tao Zhao; Project supported by the National Natural Science Foundation of China(Grant No.51979125);supported by the Jiangsu Provincial Science Fund for Distinguished Young Scholars(Grant No.BK20211547);the Technological Innovation Team Project in Colleges and Universities of Jiangsu Province(Grant No.SKJ(2021)-1);the Open Research Subject of Key Laboratory of Fluid Machinery and Engineering(Xihua University)of Sichuan Province(Grant No.LTDL-2022007);the Graduate Research and Innovation Projects of Jiangsu Province(Grant No.KYCX23_3701).; The purpose of this paper is to investigate the performance improvement mechanism of a high power vertical centrifugal pump by using numerical calculations.Therefore,a comparative study of energy losses and internal f...; 关键词：High-power vertical centrifugal pump performance improvement mechanism hydraulic component matching flow pattern energy balance equation

Optimization of closing law of turbine guide vanes based on improved artificial ecosystem algorithm被引量：1: 《Journal of Hydrodynamics》2023年第3期582-593,共12页Li-ying Wang Jia-jie Zhang Hong-gang Fan; supported by the National Natural Science Foundation of China(Grant Nos.51879140,11972144 and 12072098);supported by the One Hundred Outstanding Innovative Scholars of Collegessand Universities inHebeiProvince(Grant No.SLRC2019022);the State Key Laboratoryof Hydroscience and Engineering,Tsinghua University(Grant No.2021-KY-04);Tsinghua-Foshan Innovation Special Fund(TFISF)(Grant No.2021THFS0209);the Creative Seed Fund of Shanxi Research Institute for Clean Energy,Tsinghua University.; Optimization of the closing law of the guide vane is the most economical and efficient way to reduce the risk incurred by pressure and speed excursions,thus guaranteeing the security of the hydro-turbine and the whole...; 关键词：Hydraulic transient process the closing law of guide vane improved artificial ecosystem-based optimization(IAEO) optimization calculation

Determination of groundwater flow regimes based on the spatial non-local distribution of hydraulic gradient:Model and validation: 《Journal of Hydrodynamics》2022年第2期299-307,共9页Xiu-xuan Wang Jia-zhong Qian Lei Ma Qian-kun Luo Guan-qun Zhou; supported by the National Natural Science Foundation of China(Grants Nos.41831289,41877191,42072276).; The groundwater flow in natural aquifers can change from the Darcy flow to the non-Darcian flow due to a variety of causes,such as the increase of the Reynolds number in the highly permeable media or the decrease of t...; 关键词：Hydraulic head distribution spatially non-local effect flow regime Forchheimer number Reynolds number

Energy dissipation on stepped spillways and hydraulic challenges—Prototype and laboratory experiences被引量：2: 《Journal of Hydrodynamics》2022年第1期52-62,共11页Hubert Chanson; Stepped cascades, chutes and spillways have been in use for more than three millennia. With the introduction of new construction materials and techniques, the staircase chute design has regained some interest within t...; 关键词：Stepped spillways hydraulic modeling field measurements energy dissipation and design multiphase air-water flows

Flow characteristics in open channels with aquatic rigid vegetation被引量：4: 《Journal of Hydrodynamics》2020年第6期1100-1108,共9页Yan-jie Wu He-fang Jing Chun-guang Li Ying-ting Song; Project supported by the National Natural Science Foundation of China(Grant Nos.11861003,11761005).; In order to study the flow characteristics in water bodies with rigid aquatic vegetation,series of laboratory experiments are carried out in an open channel,in which glass rods are used as plants with diameters of 6mm...; 关键词：Aquatic rigid vegetation flow velocity laser Doppler velocimeter(LDV) head loss hydraulic slope

Application of the hybrid RANS/LES method on the hydraulic dynamic performance of centrifugal pumps被引量：1: 《Journal of Hydrodynamics》2019年第3期637-640,共4页Zheng-chuan Zhang Hong-xun Chen Zheng Ma Qun Wei Jian-wu He Hui Liu Chao Liu; the National Natural Science Foundation of China (Grant Nos. 51379120, 51179100).; The nonlinear hybrid RANS/LES method has been developed considering the simulation efficiency and accuracy to simulate the hydraulic dynamic characteristics of the centrifugal pump. It has been proved that the nonline...; 关键词：3-D GAP drainage BLADES nonlinear hybrid RANS/LES METHOD pressure PULSATION

Hydraulic resistance of river ice jams被引量：3: 《Journal of Hydrodynamics》2019年第3期504-511,共8页Lin Fan Ze-yu Mao Hung Tao Shen; The hydraulic resistance of the river ice jams consists of the resistances due to the seepage flow through the jam and the shear stress on the undersurface of the jam. Existing empirical formulations consider only the...; 关键词：River ICE HYDRAULIC RESISTANCE ICE JAM friction factor Manning's COEFFICIENT

Multi-objective optimization of a flow straightener in a large capacity firefighting water cannon被引量：2: 《Journal of Hydrodynamics》2019年第1期137-144,共8页Qing-jiang Xiang Lin Xue Kwang-Yong Kim Zhe-fu Shi; the National Natural Science Foundation of China (Grant No.51379090).; In the present study,a multi-objective optimization of a flow straightener in a firefighting water cannon is performed by using the surrogate modeling and a hybrid multi-objective genetic algorithm to increase the jet...; 关键词：FIREFIGHTING water cannon MULTI-OBJECTIVE optimization surrogate model TURBULENCE KINETIC energy HYDRAULIC loss

Numerical investigation of filling transients in small-scale pipelines with submerged outlet: 《Journal of Hydrodynamics》2019年第1期145-151,共7页Ling Wang Fu-jun Wang Jing Huang; the Beijing Municipal Science and Technology Project (Grant No.Z181100005518013);the National Natural Science Foundation of China (Grant Nos.51779258,51621061).; An elastic model that combines the dead-end and the orifice at the downstream end is proposed in order to study the hydraulic transients during the rapid filling in small-scale pipelines with submerged outlet.In this ...; 关键词：SMALL-SCALE pipelines rapid FILLING SUBMERGED OUTLET elastic model HYDRAULIC transients

Numerical simulation of hydraulic force on the impeller of reversible pump turbines in generating mode被引量：9: 《Journal of Hydrodynamics》2017年第4期603-609,共7页李金伟张宇宁刘凯华冼海珍于纪幸; Project supported by the National Natural Science Foun-dation of China(Project No.51506051); The hydraulic force on the reversible pump turbine might cause serious problems（e.g., the abnormal stops due to large vibrations of the machine）, affecting the safe operations of the pumped energy storage power plan...; 关键词：Pump turbine hydraulic force numerical simulation generating mode vortex backflow

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