Showing 641 - 660 results of 741 for search '"hydrodynamics"', query time: 0.06s Refine Results
  1. 641

    SIMULATION OF COOLING TOWER AND INFLUENCE OF AERODYNAMIC ELEMENTS ON ITS WORK UNDER CONDITIONS OF WIND by K. V. Dobrego, M. M. Hemmasian Kashani, E. E. Lasko

    Published 2014-12-01
    “…Heat transfer coefficient of irrigator and its hydrodynamic resistance were established according to experimental data on total air rate in cooling tower. …”
    Get full text
    Article
  2. 642

    Performance Research of Materials and Engineering Application of Overburden Strata Separation-Zone Grouting Technology by Wanpeng Huang, Huanyu Li, Gang Sun, Donghai Jiang, Yanfa Gao

    Published 2022-01-01
    “…Then, emphasis was placed on the selection ratio of grouting materials and the hydrodynamic properties of different grout types, and grouting grout with a high concentration, slow precipitation rate, and good stability was obtained by taking fly ash and local clay as aggregates. …”
    Get full text
    Article
  3. 643

    Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RAS by XIA Minghui, YIN Shiyang

    Published 2024-06-01
    “…A distributed hydrological model of SWMM was coupled with a two-dimensional hydrodynamic model (SWE-ELW) of HEC-RAS to simulate and analyze flood control and drainage in the southern water network of Fuyang City in Anhui Province. …”
    Get full text
    Article
  4. 644

    Seismic Safety Review of Gravity Dam Based on Finite Element Method by Guanchao Xu, Bowen Guo, Zhuolun Meng, Jiwei Zhao

    Published 2022-01-01
    “…The results show the following: (1) after considering the effect of hydrodynamic pressure, the natural frequency of the dam body has been significantly reduced, and the first-order natural frequency has been reduced by about 10%; (2) in addition to the local tensile stress at the dam heel, the rest of the vertical stress on the foundation surface of the retaining dam section is compressive stress, and the length of the tensile stress is less than the distance from the dam heel to the curtain center line, which met the requirements; (3) the antisliding stability safety factor of the retaining dam section is greater than the design value in the specification and meets the safety requirements; and (4) the seismic safety of the retaining dam section meets the standard requirements, and the seismic grade is evaluated as grade A.…”
    Get full text
    Article
  5. 645

    Analysis of the Influence of Groundwater Level Fluctuation on Karst Soil Cave Collapse by Xuejun Chen, Mingming Xue, Yu Song

    Published 2023-01-01
    “…It will provide essential theoretical support for further research on the action law of hydrodynamic factors on karst collapse and a scientific and reasonable basis for urban groundwater pumping control, karst and roadbed collapse prevention and prediction.…”
    Get full text
    Article
  6. 646

    Geochemical Characteristics of Formation Water in Carbonate Reservoirs and Its Indication to Hydrocarbon Accumulation by Zhen Sun, Zhen Yang, Xiaoning He, Cixuan Wan, Gang He, Qiang Ren, Shihu Zhao, Wei Cheng, Sisi Chen

    Published 2022-01-01
    “…The migration path of formation water plays an indispensable role in hydrocarbon accumulation and preservation. The hydrodynamic field controls the content of various ions in formation water and is an important participant in hydrocarbon evolution. …”
    Get full text
    Article
  7. 647

    Study on the flow field and structural stress field of the primary retarder considering the throttling characteristics of the valve by Huanhui Zhou, Zilin Ran, Hu Dai, Weida Yang, Xianwei Chen

    Published 2025-01-01
    “…The valve plays an important role in the control of the filling rate ( q fill ) and braking characteristics of the hydrodynamic retarder (HR). However, the dynamic throttling characteristics of the valve were rarely considered in previous studies. …”
    Get full text
    Article
  8. 648

    Endothelial calcium dynamics elicited by ATP release from red blood cells by Ananta Kumar Nayak, Sovan Lal Das, Chaouqi Misbah

    Published 2024-06-01
    “…Abstract Red blood cells (RBCs) exhibit an interesting response to hydrodynamic flow, releasing adenosine triphosphate (ATP). …”
    Get full text
    Article
  9. 649

    Improvement of thermohydraulic performance of flow based on novel dimpled tubes on response surface methodology and Taguchi technique-fitted experiment design by Ahmed Ramadhan Al-Obaidi, Anas Alwatban

    Published 2025-01-01
    “…The aforementioned findings suggest that dimple optimization, enhanced heat transfer efficiency, and the flow of hydrodynamic analysis are necessary for a variety of design applications. …”
    Get full text
    Article
  10. 650

    Experimental and numerical investigation into pile spacing effects on the dynamic response of coastal pile foundation bridges considering current-wave-earthquake forces by Riyadh Alsultani, Ibtisam R. Karim, Saleh I. Khassaf

    Published 2025-01-01
    “…These findings provide crucial insights into the fluid-structure interactions of coastal bridges, offering practical guidance for the design and assessment of deepwater pile foundations under seismic and hydrodynamic forces.…”
    Get full text
    Article
  11. 651

    Characterization of Origin and Evolution of Formation Water in Buried Hill of Jizhong Depression, China, Using Multivariate Statistical Analysis of Geochemical Data by Fei Li, Jianhui Zeng

    Published 2017-01-01
    “…Buried hill reservoir in Jizhong Depression is mainly distributed in hydrodynamic blocking and discharge area; therefore the two regions can be the favorable areas for petroleum migration.…”
    Get full text
    Article
  12. 652

    Comprehensive Assessment of Biomolecular Interactions of Morpholine-Based Mixed Ligand Cu(II) and Zn(II) Complexes of 2,2′-Bipyridine as Potential Anticancer and SARS-CoV-2 Agents:... by Karunganathan Sakthikumar, Rui Werner Maçedo Krause, Bienfait Kabuyaya Isamura

    Published 2022-01-01
    “…The overall DNA-binding constants observed from UV-vis, fluorometric, hydrodynamic, and electrochemical titrations were in the following sequence: (1a) > (2a) > (HL), which suggests that the complexes might intercalate DNA, a possibility that is further supported by the biothermodynamic characteristics. …”
    Get full text
    Article
  13. 653

    Research on the Impact of Coastal Land Reclamation on Geomorphic Complexity and Tidal Energy Dissipation—A Case Study of Zhoushan Islands, Hangzhou Bay by Shixia Zhang, Qiankun Hong, Huifang Guo

    Published 2025-01-01
    “…However, large‐scale coastal reclamation changes the natural landscape properties of sea areas, triggering alterations in the surrounding hydrodynamic and ecological environments. Despite the significant impact of coastal geomorphic features on tidal energy loss and disaster prevention, few studies have explored the intrinsic connection between the complexity of coastal landscapes and the rate of tidal reduction. …”
    Get full text
    Article
  14. 654

    Elevation of natural vulnerability in the karst aquifers (case study: karst aquifers of Sheshpier and Borgan, Fars province) by Mehdi kashefi, mojgan entezari, maryam Jafari Aghdam

    Published 2022-12-01
    “…Natural vulnerability is based on the geomorphologic features of surface karst, type and level of aquifer recharge and hydrodynamic aquifer karstic aquifer in Fars province is the most important source of water supply for the supplement of drinking water of communities in the province, which are prone to pollution due to the natural conditions of the region and human activities. karstic aquifer of Shispir and Borghan plays a vital role in supplying drinking and agricultural water around them. …”
    Get full text
    Article
  15. 655

    The Sedimentary Geochemical Characteristics and Geological Significance of the Wufeng-Longmaxi Formation Accumulation of Organic Matter Black Shale on the Southeastern Sichuan Basi... by Bin Wu

    Published 2022-01-01
    “…The identification of the geochemical behavior characteristics of major and trace elements shows that enrichment of the organic matter black shale section in the Changning-Qianjiang-Xiushan areas is mainly formation in the anoxic-moderate water mass restriction environment with high primary productivity and less terrigenous detritus input under the low hydrodynamic conditions. However, the correlations of terrigenous detrital proxies Ti/Al, redox proxies V/Cr, Ni/Co, and paleoproductivity proxies Babio with the TOC contents show that the Changning area is a favorable area for the formation of organic-rich black shale and the Qianjiang area is affected by the Wuling underwater uplift; the thickness of the black shale deposits becomes thinner; the Xiushan area is adjacent to the Xuefeng uplift, and the deposition conditions of the accumulation of organic matter black shale deteriorate, which is unfavorable for shale gas exploration.…”
    Get full text
    Article
  16. 656

    Construction of nitrogen and phosphorus flux of land-based pond mariculture: Taking the Xiangshan Bay as an example by Yiwei Du, Xiaoguang Li, Siru Liu, Tian Lin

    Published 2025-01-01
    “…Potential environmental effects were further assessed according to monthly discharge flux combined with seasonal variations of hydrodynamic environment. In comparison, the estimated annual fluxes of chemical analysis method were much lower than the ones of pollution discharging coefficient method which were 357.56 tones/year and 22.00 tones/year, respectively. …”
    Get full text
    Article
  17. 657

    A novel cobalt oxide nanoparticle conjugated with ellagic acid arrests the cell cycle in human liver cancer cell line by Ayda Mahmoudi, Vajiheh Zarrin Pour, Ali Salehzadeh

    Published 2025-01-01
    “…The zeta potential and particle hydrodynamic size were − 5.43 and 169 nm, respectively and had no elemental impurity. …”
    Get full text
    Article
  18. 658

    Ecological Water Level Determination and Safeguard Measures for Rivers in Northern Jiangsu Plain by WANG Zhenqi, FANG Hongyuan, XU Guangdong, ZHU Ye, WANG Chengjie

    Published 2022-01-01
    “…Effective methods of calculating the threshold of river ecological flow (water level) need to be employed to obtain measures of controlling the ecological state of rivers in a plain river network and to build a robust long-term mechanism of ecological flow control.The Zongliutang River in the river network area of Northern Jiangsu Plain is divided into upper,middle,and lower reaches according to its objective environment and its actual operation and management situation.Then,the controlling condition of the ecological water level of each reach is analyzed respectively.Considering the hydrological characteristics,hydrodynamic characteristics,and observed hydrological data conditions of rivers in this river network area,several methods are utilized to calculate the ecological water level threshold of the middle reach of the river respectively.Those methods include the annual minimum water level method with a 90% guarantee rate,the wetted perimeter method,the minimum monthly average water level method,and the lowest survival water depth method.Through the comparative analysis of actual river operation and management schemes,the ecological water level targets of the upper,middle,and lower reaches of the river are comprehensively determined as 17.40 m,8.96 m,and 7.50 m respectively.After the control value of the ecological water level of the river is obtained by comprehensive analysis,the actual operation and management situation of the river is taken into account to propose specific safeguard measures for maintaining the ecological water level (flow) target of the river from multiple perspectives.Some of the measures are constructing a robust and feasible ecological flow control system,accelerating the construction of an information monitoring system of ecological flow and water intake and an early warning system safeguarding the ecological water level target,and strengthening the supervision and assessment of the implementation of river and lake ecological flows (water levels).…”
    Get full text
    Article
  19. 659

    Experimental stand for physical modelling of flows in the flow path of hydraulic turbines by G. V. Orekhov, M. K. Sklyadnev

    Published 2023-09-01
    “…The study of various physical phenomena requires compliance with certain modelling laws. When modelling hydrodynamic phenomena, it is necessary to observe geometric, kinematic and dynamic similarities. …”
    Get full text
    Article
  20. 660

    The effect of site exposure index on the required capacities of aquaculture structures by Tobias Dewhurst, Samuel Rickerich, Michael MacNicoll, Nathaniel Baker, Zachary Moscicki

    Published 2025-01-01
    “…The selection of 36 sites in this region was based on extreme hydrodynamic and mean bathymetric conditions, utilizing a k-means clustering approach to identify a collection of sites within a broad range of environmental conditions. …”
    Get full text
    Article