Showing 321 - 340 results of 696 for search '"turbulence"', query time: 0.05s Refine Results
  1. 321

    Numerical Simulation of Density Current Evolution in a Diverging Channel by Mitra Javan, Afshin Eghbalzadeh, Masoud Montazeri Namin

    Published 2012-01-01
    “…This study seeks to explore the ability of 2D width-averaged unsteady Reynolds-averaged Navier-Stokes (RANS) simulation approach for resolving density currents in an inclined diverging channel. 2D width-averaged unsteady RANS equations closed by a buoyancy-modified 𝑘−𝜀 turbulence model are integrated in time with a second-order fractional step approach coupled with a direct implicit method and discretized in space on a staggered mesh using a second-order accurate finite volume approach incorporating a high-resolution semi-Lagrangian technique for the convective terms. …”
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  2. 322

    Archi-écritures de genre et politiques de différance : immondices verbales et littéracies d’intervention dans le quotidien des établissements scolaires by Rodrigo Borba, Adriana Carvalho Lopes

    Published 2019-12-01
    “…Grounded on the analytical assumption that language (and, above all, what we do with it and speak about it) cannot not be sidelined if we want to understand historical moments of political and social turbulence, we argue that these semiotic interventions mess linguistic conventions and school’s everyday life and, thus, challenge power relations. …”
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    Article
  3. 323

    Effect of Rapid Solidification Rates on Preparation of Ni-Pb Alloy Hollow Particles with Low Pb Content by Ka Gao, Yueyang Xu, Gaopeng Tang, Xiaoqin Guo, Rui Zhang

    Published 2019-01-01
    “…With the roller speeds increasing, the sizes of hollow particles and holes were decreased which were deviated from the particle center, while the hollow ratio, shear stress, and turbulence intensity of the hollow particles were increased. …”
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    Article
  4. 324

    Time-Frequency Characterization of Rotating Instabilities in a Centrifugal Pump with a Vaned Diffuser by G. Pavesi, G. Cavazzini, G. Ardizzon

    Published 2008-01-01
    “…The experimental data were then compared with the results obtained with help of ANSYS CFX computer code; focusing on the changing flow field at part load. Turbulence was reproduced by DES model.…”
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    Article
  5. 325

    Transfers as an effective instrument of public finance resilience by G. R. Sakhapova

    Published 2022-12-01
    “…It has been established that one of the instruments of resilience is interbudgetary transfers, the improvement of distribution methods of which makes it possible to increase the flexibility and adaptability of the regional economy in a period of environmental turbulence. The existing models for the use of intergovernmental transfers are identified and considered: 1) the introduction of blocks for the distribution of subsidies into the system of substantiation of budgetary appropriations based on the developed methods, 2) a binary model for managing the socio-economic development of the region, which performs the dual functioning of the transfer mechanism and priorities strategic development. …”
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    Article
  6. 326

    Effect of the Radial Pressure Gradient on the Secondary Flow Generated in an Annular Turbine Cascade by Hesham M. El-Batsh

    Published 2012-01-01
    “…The three-dimensional Reynolds Averaged Navier Stokes equations were solved to understand flow physics. Turbulence was modeled using eddy-viscosity assumption and the two-equation Shear Stress Transport (SST) k-ω model. …”
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  7. 327

    On the Performance of Energy Harvesting Dual-Hop Free-Space Optical Communication Systems with Secrecy Analysis by Abdulgani A. Ibrahim, Serdar Özgür Ata, Lütfiye Durak-Ata

    Published 2025-01-01
    “…It is assumed that the FSO links experience a Malaga turbulence channel with pointing errors. In order to evaluate the performance of the proposed communication system, closed-form expressions for outage probability, ergodic capacity, average bit error rate, and throughput are derived. …”
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  8. 328

    Exact Solutions of the Generalized ZK and Gardner Equations by Extended Generalized G′/G-Expansion Method by Sanjaya K. Mohanty, Apul N. Dev, Soubhagya Kumar Sahoo, Homan Emadifar, Geeta Arora

    Published 2023-01-01
    “…The generalized ZK equation and the Gardner equation govern the behavior of nonlinear wave phenomena in the presence of magnetic field in plasma dynamics, turbulence, bottom topography, and quantum field theory. …”
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    Article
  9. 329

    Optimization of Flow Characteristics and Diffusion Angles of Forward Inflow Forebay of Pumping Station by LI Yun, LI Chaochao, LI Mingyang, GU Jingchao

    Published 2025-01-01
    “…Numerical simulations using FLUENT software were conducted to examine different forebay patterns based on the Realizable turbulence model and the Eulerian multiphase flow model. …”
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    Article
  10. 330

    On the Safe-Haven Ability of Bitcoin, Gold, and Commodities for International Stock Markets: Evidence from Spillover Index Analysis by Qian Wang, Yu Wei, Yao Wang, Yuntong Liu

    Published 2022-01-01
    “…In this paper, we aim to identify whether commonly recognized safe-haven assets, that is, bitcoin, gold, and commodities, can provide investors with effective hedging utility in international stock markets, especially during periods of extreme market turbulence. By using the spillover index method based on the TVP-VAR model, we find that firstly, bitcoin, gold, and commodities can only offer weak hedging effects on stock markets. …”
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  11. 331

    Study on the evolving role of the People’s Republic of China in resolving the conflict in the Islamic Republic of Afghanistan by F. F. Sharipov, М. A. Dyakonova

    Published 2022-01-01
    “…The research done by the authors over the last six months has developed rapidly in recent weeks and even days, indicating that geopolitical turbulence is developing in recent times.The article classifies the full range of the People’s Republic of China interests in the Islamic Republic of Afghanistan and identifies the factors that influence the formation of China’s system of interests in Afghanistan, including factors in the international environment. …”
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  12. 332

    Prediction of a Small-Scale Pool Fire with FireFoam by Camilo Andrés Sedano, Omar Darío López, Alexander Ladino, Felipe Muñoz

    Published 2017-01-01
    “…A computational model using Large Eddy Simulation (LES) for turbulence modelling was implemented, by means of the Eddy Dissipation Concept (EDC) combustion model using the fireFoam solver. …”
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  13. 333

    Impact of Mesoscale Motions on Monin-Obukhov Similarity and Surface Energy Balance over a Homogeneous Surface by Yang Guo, Hongchao Zuo

    Published 2017-01-01
    “…In order to understand the effect of mesoscale motions on turbulent fluxes more clearly, this study analyzes the impact of mesoscale motions on MOST and surface energy balance using the multiresolution decomposition method and the observational data over a homogeneous bare soil surface. …”
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  14. 334

    Research on Wind Load Calculation Based on Identical Guarantee Rate Method by Tao Ye, Ledong Zhu, Zhongxu Tan, Lanlan Li

    Published 2021-01-01
    “…Based on the basic theory of probability and the systematic analysis of the surrounding environment and turbulence, a random variable model for calculating wind load is established. …”
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  15. 335

    Saving the Fundaments: Impact of a Military Coup on the Sudan Health System by Alhadi K. Osman, Mona Ibrahim, Mohamed Elsheikh, Karrar Karrar, Hassan Salih

    Published 2021-12-01
    “…This paper narrates some notable consequences of political instability on the national health system, particularly placing them in the context of the military coup in October 2021 – emphasizing the context behind the political turbulence, its acute and direct consequences, and the possible long-term legacies of political shocks on the already overwhelmed health system. …”
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  16. 336

    Flow Field and Pressure Loss Characteristics at Rotary Drillstring Joints by Minghu Nie, Yuchen Ye, Zheng Wang, Dandan Yuan, Xingyi Wang, Kai Wei

    Published 2023-01-01
    “…Considering the geometric nonlinearity of drillstring joints and the unsteady flow of annular fluid caused by pipe rotation, based on the turbulence model k−ε, the flow field characteristics demonstrate the annulus pressure losses at the drillstring joint are studied by numerical simulation. …”
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  17. 337

    Industrial Democracy in the UK: Precursors to the Bullock Report by Rebecca Zahn

    Published 2022-10-01
    “…No consensus could be found on the Report’s implementation and the political and industrial turbulence that followed in the late 1970s and throughout the 1980s resulted in the abandonment of the recommendations. …”
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  18. 338

    A Film-Cooling CFD Bibliography: 1971–1996 by D. M. Kercher

    Published 1998-01-01
    “…In recent years there has been significant development in increased computer power and modeling capacity, increasingly more complex and successful Navier-Stokes turbulence modeling techniques, innovative labor-saving meshing techniques, and more successful validation of experimental results. …”
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  19. 339

    Design and Simulation of a Thermal Heating Unit for a Room Heater. by Wabwire, Jovent Apollo

    Published 2024
    “…The study also simulates the proposed heating unit, analyzing internal pressure, radiative surface temperature, and fluid turbulence of the working fluid. Simulation results confirm the unit's feasibility and effectiveness, showcasing its potential to improve energy efficiency and indoor comfort. …”
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    Thesis
  20. 340

    Perlocutions of 2024 Indonesian General Election: A Cyberpragmatics Perspective by Nur Lailiyah

    Published 2024-12-01
    “…This study yields the following findings regarding the perlocutions of the 2024 elections: (1) emphasizing sentiments (directly); (2) emphasizing sentiments (indirectly); (3) building misconceptions; (4) determining choices; (5) determining choices (accompanied by invective); (6) displaying neutrality; (7) satirizing (authorities); (8) satirizing (individuals); and (9) fostering turbulence.…”
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