Showing 861 - 880 results of 926 for search '"turbulence"', query time: 0.05s Refine Results
  1. 861

    A history of modern Uganda / by Reid, Richard J. (Richard James)

    Published 2017
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    Book
  2. 862

    Optimizing humidification–dehumidification desalination systems: Impact of nozzle position and geometric configuration on performance and efficiency by Mohammad Alrbai, Ahmad Al Masri, Dareen Makawii, Ali Alahmer

    Published 2025-03-01
    “…Geometric analyses revealed that cylindrical designs reduced head loss by 8%, from 4.91 mm in square prisms to 4.45 mm, while improving turbulent flow and heat and mass transfer through better air-water interaction. …”
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    Article
  3. 863

    Deep learning modeling of manufacturing and build variations on multistage axial compressors aerodynamics by Giuseppe Bruni, Sepehr Maleki, Senthil K. Krishnababu

    Published 2025-01-01
    “…However, due to the highly complex, turbulent, and three-dimensional flows, they have not yet been proven usable for turbomachinery applications. …”
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    Article
  4. 864

    Influence of Inlet Angle of Guide Vane on Hydraulic Performance of an Axial Flow Pump Based on CFD by Lei Xu, Dongtao Ji, Wei Shi, Bo Xu, Weigang Lu, Linguang Lu

    Published 2020-01-01
    “…In order to improve the hydraulic performance of pump under off-design working conditions, the influence of the inlet segment axial chord and inlet angle adjustment of the guide vane on the pump segment efficiency and flow filed was simulated by using the renormalization group (RNG) k−ε turbulent model based on the Reynolds-averaged Navier–Stokes equations. …”
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    Article
  5. 865

    The Evolution of Mediation in International Conflicts from 1940s to 2020s by M. M. Lebedeva

    Published 2024-09-01
    “…During the third stage, in the 21st century, the political organization of the world has been undergoing a turbulent transformation at all the three levels: Westphalian system, the system of interstate relations, and political systems of individual states. …”
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    Article
  6. 866

    Le déclin de l’entreprise générale de la centrale de Poissy (1870-1914) by Claire Depambour

    Published 2014-09-01
    “…Au cœur de toutes les turbulences historiques (invasion du département de la Seine-et-Oise par l’armée prussienne en 1870) et économiques (récession de la fin du XIXe siècle), la centrale sombra dans une crise profonde dont les différents entrepreneurs furent aussi responsables. …”
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    Article
  7. 867

    Criminological Scenarios of Crime Situation’s Transformation in the Context of Armed Conflict on Donbass in the Midterm by O. О. Titarenko

    Published 2019-09-01
    “…The author has expertly substantiated the highest probability of developing a crime situation in the midterm in the following three scenarios: “Stagnation and slight increase” (most realistic), “Control and security” (optimistic), “Turbulent crime” (negative). It has been proved that the development of probable criminological scenarios will depend on the intensity of external and internal threats to national security. …”
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    Article
  8. 868

    United Nations - African Union Cooperation In Conflict Prevention, Peacekeeping and Peacebuildin by L. I. Romadan, V. A. Shagalov

    Published 2015-12-01
    “…According to researches one of the most turbulent regions on continent in terms of security is the North-East Africa. …”
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    Article
  9. 869

    Detailed Film Cooling Measurements over a Gas Turbine Blade Using a Transient Liquid Crystal Image Technique by Hui Du, Srinath V. Ekkad, Je-Chin Han, C. Pang Lee

    Published 2001-01-01
    “…Results show that film injection promotes earlier laminar-turbulent boundary layer transition on the suction surface and also enhances local heat transfer coefficients (up to 80%) downstream of injection. …”
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    Article
  10. 870

    TRANSREGIONAL PARTNERSHIP OF BRICS IN RUSSIAN STUDIES by A. A. Konkin

    Published 2016-06-01
    “…Under their influence will be shaped and altered their economies and unexpected moments can occur in a turbulent global economic space. Russian authors studied in detail the characteristics of each of the member countries of BRICS, which allows to mark a significant interest in the national science to the study of inter-regional cooperation in the global political and economic space. …”
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    Article
  11. 871

    Numerical investigation of segmental baffle design in shell and tube heat exchangers with varying inclination angles and spacing by A. M. Mohammadzadeh, Bahram Jafari, Khashayar Hosseinzadeh, E. Paikar

    Published 2025-02-01
    “…This research uses a three-dimensional computational fluid dynamics (CFD) simulation to model turbulent fluid flow and evaluate the performance of different baffle angle configurations. …”
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    Article
  12. 872

    Iraqi Stock Market Prediction Using Artificial Neural Network and Long Short-Term Memory by Sama Hayder Abdulhussein AlHakeem, Nashaat Jasim Al-Anber, Hayfaa Abdulzahra Atee, Mahmod Muhamad Amrir

    Published 2023-03-01
    “…The choice of the proper model of time series data affects the precision of the predictions, and stock market data is typically random and turbulent for various industries. To obtain forecast models of stock market data that can accurately portray reality and obtain future forecasts, these models must take all data considerations from linear and none linear trends, different influences, and other data factors, hence the research problem of obtaining a method that gives predictions of Iraq's stock market indicators that are accurate and reliable in stock analysis. …”
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  13. 873

    Impact of human body shape on free convection heat transfer. by Shri H Viswanathan, Ankit Joshi, Lyle Bartels, Kambiz Sadeghi, Jennifer K Vanos, Konrad Rykaczewski

    Published 2025-01-01
    “…Furthermore, our regression coefficients and exponents can be derived from the theorical correlation for free turbulent convection from a vertical plate, which also explains the observed independence of the heat transfer coefficient from the manikins' height. …”
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    Article
  14. 874

    Problem of Harmonization of Legal Norms with the Needs of Police Investigations by Using High-Tech Instruments for Searching Information by Yu. V. Hnusov, V. M. Strukov, O. O. Mozhayev

    Published 2021-03-01
    “…It has been determined that the transition of police structures from a reactive to a proactive paradigm is unalterable in the modern high-tech turbulent world. The problem’s structuring has been accomplished. …”
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    Article
  15. 875

    INVESTIGATION OF THE POSSIBILITY OF USING A VORTEX HEAT GENERATOR IN HEAT SUPPLY SYSTEMS FOR RESIDENTIAL, INDUSTRIAL AND PUBLIC BUILDINGS by I. L. Iokova, E. N. Tarasevich

    Published 2018-04-01
    “…Vortex heat generators are based on the principle of cavitation in a turbulent water flow. For many devices cavitation is not desirable, but in a vortex heat generator it is used as a favorable phenomenon. …”
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    Article
  16. 876

    The Lift Enhancement Effect of a New Fluidic Oscillator on High-Lift Wings by Tong Zhao, Yalei Bai

    Published 2025-01-01
    “…A deeper analysis of the fluidic oscillator’s working principle reveals that periodic oscillations dominate the turbulent kinetic energy and Reynolds shear stress, driving enhanced chordwise momentum exchange. …”
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    Article
  17. 877

    THERMAL EFFECTIVENESS OF THE GAS FLOW VORTICAL HEATRELEASE INTENSIFICATION AT AXIAL AND TRANSVERSAL FLOWING-AROUND THE ROUND-TUBULAR SURFACES Part 2 by V. B. Kuntysh, A. B. Sukhotskiy, A. V. Yatsevich

    Published 2015-09-01
    “…It may vary from 4 to 280 % as a function of their geometrical parameters which causes heat-release increasing with its simultaneous growth from vortex formation in the boundary-layer flow by the swirls generated by lunule turbulizers. For the tube of axial flow-around with hollows applied on the outer surface the vortex intensification enhances the thermal effectiveness up to 1,39 times, and in the case of the transversal flow-around tube banks with lunuled tube outer surface it does not exceed 29 % at Re = 5000. …”
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    Article
  18. 878

    Performance characteristics of shell and tube heat exchanger using sectoral baffle by Jacob Kolawole Adebayo, Ademola Adebukola Dare, Moses Omolayo Petinrin

    Published 2025-01-01
    “…The finite element method was used to solve continuity, momentum, energy, and k-ε turbulent equations that govern STHX. The simulation procedure (SP) was applied to STHX with a single segmental baffle (SB) and 90º, 120º, and 150º sectoral baffles (STB). …”
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    Article
  19. 879

    Numerical Investigation on Heat Transfer and Pressure Drop in Silver/Water Nanofluids Flowing Through Tubes with Variable Expansion–Contraction Ratios by Enio Pedone Bandarra Filho, Erick Oliveira do Nascimento, Muhammad Farooq, Luben Cabezas-Gómez

    Published 2025-01-01
    “…The analysis was conducted under turbulent flow conditions and three-dimensional thermal convection in tubes subjected to a constant heat flux of 20 kW/m<sup>2</sup>, with the inlet Reynolds number maintained at approximately 20,000. …”
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    Article
  20. 880

    3D Convective Urca Process in a Simmering White Dwarf by Brendan Boyd, Alan Calder, Dean Townsley, Michael Zingale

    Published 2025-01-01
    “…The convective Urca process is not well understood and requires 3D fluid simulations to properly model the turbulent convection, an inherently 3D process. Because the neutron excess of the fluid both sets and is set by the extent of the convection zone, the realistic steady state can only be determined in simulations with real 3D mixing processes. …”
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