Showing 421 - 440 results of 696 for search '"turbulence"', query time: 0.05s Refine Results
  1. 421

    Particle size grouping method as a control system of efficiency flotation process on the example of coal by Kalisz D., Kuglin K., Młynarczykowska A.

    Published 2021-01-01
    “…In the analysed cases the dimensionless parameter of collision turbulence t* needed for particles agglomeration in particular size groups was importantly shorter for particles of initial size 300 and 400 μm. …”
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  2. 422

    Performance Enhancement in Horizontal Axis Wind Turbine Using Blade With Split by Adilkhan Tuken, Cemil Yigit

    Published 2025-02-01
    “…In the optimization process, the slope, position, width, and number of the splits were taken as parameters, and the optimum blade design was created. A steady‐state turbulent flow and transition SST turbulence model was used for the moving reference frame calculation to find the optimum split parameters. …”
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  3. 423

    Thermal Performance of a Dimpled Tube Parabolic Trough Solar Collector (PTSC) with SiO2 Nanofluid by M. Arun, Debabrata Barik, K. P. Sridhar, Milon Selvam Dennison

    Published 2022-01-01
    “…The added advantage of the dimple texture tube design led to an increase in turbulence in the flow pattern, resulting 34.2% increase in the convective heat transfer efficiency compared with the plain tube. …”
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  4. 424

    Neo-traditionalism as a factor of neoconservative modernization: specificity of the evolution of power and control by Valentin Tyan

    Published 2019-03-01
    “…In posttraditional society in the conditions of crisis the power, fighting against political turbulence, for the sake of achievement of political stability in society, applies not only mechanisms of political and legal regulation, but also neotraditionalist instruments of regulation. …”
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    Article
  5. 425

    Analysis of Regional Economic Development Differences Based on Intelligent Hybrid Algorithm by Yanyan Li

    Published 2021-01-01
    “…The diversities in the natural, social, and human environment of various regions often lead to the differences in their regional economic development level and industrial structure and layout; moderate regional differences can mobilize economic vitality and improve development efficiency, but excessive differences may lead to social instability or even turbulence. Intelligent algorithms or their improved and hybrid algorithms can recently achieve more suitable solutions to practical problems of nonlinear, discrete, nondifferentiable, and multiple constraints. …”
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    Article
  6. 426

    Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment by Dilipkumar Bhanudasji Alone, S. Satish Kumar, Shobhavathy M. Thimmaiah, Janaki Rami Reddy Mudipalli, A. M. Pradeep, Srinivasan Ramamurthy, Venkat S. Iyengar

    Published 2014-01-01
    “…Hot-wire measurements show significant reduction in the turbulence intensity with increase in the plenum chamber volume compared to that with the solid casing at the stall condition. …”
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  7. 427

    Economic security as a driver of Russian exclave development in alignment with national interests by Ksenia Yu. Voloshenko

    Published 2024-01-01
    “…Economic security in border regions emerged as a new area of inquiry in human geography, under the supervision of Prof Fedorov and with the active involvement of researchers from Kaliningrad, Rostov-on-Don, Saint Petersburg, Smolensk, and Simferopol, within the framework of the Russian Science Foundation project № 18-17-00112, titled Ensuring the Economic Security of the Regions of Russia’s Western Borderlands under Conditions of Geopolitical Turbulence. This study is the first attempt at a comprehensive examination of economic security, considering a multitude of contributing factors: economic, social, domestic and foreign policy-related, ethnic and environmental. …”
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  8. 428

    Wind Tunnel Test on Local Wind Field around the Bridge Tower of a Truss Girder by Jingyu Zhang, Mingjin Zhang, Bing Huang, Yongle Li, Jiaxin Yu, Fanying Jiang

    Published 2021-01-01
    “…The opening form of the wind barrier should also be considered, where a circular-holed form reduces the wind speed and turbulence more than a horizontal-slatted form. The wind field is affected by structures and bridge towers on the deck. …”
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  9. 429

    The Effect of Reynolds Number on Jet in Asymmetric Co-Flows: A CFD Study by Ziyan Teng, I. A. Sofia Larsson, T. Staffan Lundström, B. Daniel Marjavaara

    Published 2018-01-01
    “…For further validation and understanding, more measurements in the shear layer and simulations with more advanced turbulence models are necessary.…”
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  10. 430

    Optimization strategies for multi‐block structured CFD simulation based on Sunway TaihuLight by Xiaojing Lv, Wenhao Leng, Zhao Liu, Chengsheng Wu, Fang Li, Jiuxiu Xu

    Published 2025-01-01
    “…Abstract Decomposition and solver are the main performance bottlenecks of multi‐block structured CFD simulation involving complex industrial configurations such as aero‐engine, shock‐boundary layer interactions, turbulence modeling and so on. In this article, we proposed several optimization strategies to improve the computing efficiency of multi‐block structured CFD simulation based on Sunway TaihuLight super computing system, including: (1) a load balancing decomposition approach combined with recursive segmentation of undirected graphs and block mapping for multi‐structured blocks, (2) two‐level parallelism that utilizes MPI + OpenACC2.0* hybrid parallel paradigms with various performance optimizations such as data preprocessing, reducing unnecessary loops of subroutine calls, collapse, and tile syntax, memory access optimization between the main memory and local data memory (LDM), and (3) a carefully orchestrated pipeline and register communication strategy between computing processor elements (CPEs) to tackle the dependence of LU‐SGS (Lower‐Upper Symmetric Gauss–Seidel). …”
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  11. 431

    The Study on the Shock Wave Propagation Rule of a Gas Explosion in a Gas Compartment by Shu-Chao Lin, Qing-Zhao Hou, Anna Derlatka, Shan Gao, Jin-Jun Kang, Xiao-Lei Dong

    Published 2022-01-01
    “…Combined with the k-ε turbulence model of general application, a refined finite element model of a utility tunnel’s gas compartment filled with the methane/air mixture is developed. …”
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  12. 432
  13. 433

    Are Firms in Corporate Groups More Resilient During an Economic Crisis? Evidence from the Manufacturing Sector in Poland by Barbara Jankowska, Katarzyna Mroczek-Dąbrowska, Marian Gorynia, Marlena Dzikowska

    Published 2016-01-01
    “…The above mentioned benefits are of even greater importance during times of economic turbulence. Their involvement in a corporate group should theoretically allow firms to perform better. …”
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  14. 434

    Effects of Rotation at Different Channel Orientations on the Flow Field inside a Trailing Edge Internal Cooling Channel by Matteo Pascotto, Alessandro Armellini, Luca Casarsa, Claudio Mucignat, Pietro Giannattasio

    Published 2013-01-01
    “…A commercial 3D RANS solver including a SST turbulence model has been used to compute the isothermal steady air flow inside both static and rotating passages. …”
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  15. 435

    Trajectory of Steady Growth or Next Disbalance of Mechanisms of the World Economy by E. N. Smirnov, V. N. Kirillov

    Published 2019-11-01
    “…Main objective of the article – assessment of problems and opportunities of speeding up of world economic growth in the context of the crisis phenomena and turbulence in economy. Complication and reformatting of the economic relations between the countries represents serious challenges for modern economic dynamics. …”
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  16. 436

    Analysis of Warm and Cold Season Thunderstorms for Istanbul by Muhammed Başpınar, Veli Yavuz

    Published 2024-01-01
    “…A thunderstorm (TS) is a severe weather phenomenon characterized by intense showers, hail, lightning, thunder, tornadoes, turbulence, and gusty winds. It occurs in vertically developed Cumulonimbus (Cb) clouds due to atmospheric instability and has a spatial resolution (meso-scale) of 1 - 100 km. …”
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  17. 437

    IMF B y influence on fast earthward convection flows in the near-lunar magnetotail by T. C. Liu, T. Pitkänen, S. Nilsson, A. Kullen, J.-S. Park, M. Hamrin, W. S. Shang, H. Z. Wang, S. T. Yao

    Published 2025-02-01
    “…Abstract This study investigates the effects of non-zero IMF B y on the magnetotail B y and fast earthward ion convection (V ⊥ > 200 km/s, "⊥" indicates perpendicular to the magnetic field) in the near-lunar magnetotail plasma sheet using the plasma parameters and magnetic field detected by the ARTEMIS (Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon’s Interaction with the Sun) P1 satellite during the period 2011–2022. …”
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  18. 438

    Optimization of Wind Turbine Airfoil Using Nondominated Sorting Genetic Algorithm and Pareto Optimal Front by Ziaul Huque, Ghizlane Zemmouri, Donald Harby, Raghava Kommalapati

    Published 2012-01-01
    “…The Lift Coefficient (CL) and Drag Coefficient (CD) data at a range of 0° to 12° angles of attack (α) and at three different Reynolds numbers (Re=68,459, 479, 210, and 958, 422) for all the six airfoils were obtained. Realizable k-ε turbulence model with a second-order upwind solution method was used in the simulations. …”
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  19. 439

    An Analysis of Fuel Oil Sloshing in Partially Filled Cargo Tanker Trucks under Cornering Conditions Using Various Baffle Systems by Woinshet Siraye, Alemayehu Wakjira, Ramesh Babu Nallamothu

    Published 2023-01-01
    “…The computational simulation is carried out as a tank with eight types of baffle systems such as existing baffles (TB), TB with BMLB, UMLB, CLB, 2HLB, 2VHLB, 4HLB, and 4VHLB with similar meshing resolution, similar turbulence modeling, similar boundary conditions, and also similar solution strategies. …”
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  20. 440

    Investigation of Structural Nonlinearity Effects on the Aeroelastic and Wake Characteristics of a 15 MW Wind Turbine by Zhenju Chuang, Lulin Xia, Yan Qu, Wenhua Li, Jiawen Li

    Published 2025-01-01
    “…Additionally, nonlinear deformations weaken the tip vortex strength, slow the momentum exchange in the wake region, reduce turbulence intensity, and delay wake recovery. This study highlights the importance of considering blade nonlinear deformations in large-scale wind turbines.…”
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