Showing 481 - 500 results of 696 for search '"turbulence"', query time: 0.05s Refine Results
  1. 481

    Vertical Shear Instability in Thermally Stratified Protoplanetary Disks. I. A Linear Stability Analysis by Han-Gyeol Yun, Woong-Tae Kim, Jaehan Bae, Cheongho Han

    Published 2025-01-01
    “…Vertical shear instability (VSI), driven by a vertical gradient of rotational angular velocity, is a promising source of turbulence in protoplanetary disks. We examine the semiglobal stability of thermally stratified disks and find that the VSI consists of surface and body modes: surface modes are confined to regions of strong shear, while body modes extend perturbations across the disk, consistent with the previous findings. …”
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  2. 482
  3. 483

    Laboratory-scale photomineralization of n-alkanes in gaseous phase by photocatalytic membranes immobilizing titanium dioxide by Ignazio Renato Bellobono, Rodica Stanescu, Cristina Costache, Carmen Canevali, Franca Morazzoni, Roberto Scotti, Riccardo Bianchi, Emilia Simona Mangone, Giulia de Martini, Paola Maria Tozzi

    Published 2006-01-01
    “…Photocatalytic processes thus appear to be controlled by interface phenomena, which are ruled kinetically, and apparently also thermodynamically, by concentration gradients, independently on diffusion and other processes in the aqueous or gaseous bulk, if turbulence in these phases is adequately assured.…”
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  4. 484

    Large-Eddy Simulation (LES) on the Square and Triangular Tall Buildings to Measure Drag Force by Abdollah B. Daemei, Amiraslan Darvish, Roya Aeinehvand, Amirali Razzaghipour

    Published 2021-01-01
    “…The Large Eddy Simulation (LES) method was used for turbulence solving. This study aims to optimize tall square and triangular-shaped buildings in order to reduce drag force under along-wind motion. …”
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  5. 485

    Nanodeserts: A Conjecture in Nanotechnology to Enhance Quasi-Photosynthetic CO2 Absorption by Wenfeng Wang, Xi Chen, Yifan Zhang, Jianjun Yu, Tianyi Ma, Zhihan Lv, Jing Zhang, Fanyu Zeng, Hui Zou

    Published 2016-01-01
    “…Arid and semiarid deserts ecosystems approximately characterize one-third of the Earth’s land surface but play an unsung role in the carbon cycling, considering the huge potentials of such CO2 absorption to expand insights to the long-sought missing CO2 sink and the naturally unneglectable turbulence in temperature sensitivities of soil respiration it produced. …”
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  6. 486

    International development cooperation and political risks for transnational business: Linking research topics by V. I. Bartenev

    Published 2023-06-01
    “…The conclusion argues for focusing on the reverse impact of new trends in international development cooperation on the parameters of political risks for international business from the Western and non-Western countries amidst the global turbulence, using all available sources of statistical data — conventional and unconventional. …”
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  7. 487

    Some features of implementation of design model of high-pressure centrifugal compressor stage with inlet guide vanes by V. V. Karabanova, A. D. Vanyashov, V. L. Yusha

    Published 2019-06-01
    “…The flow study is performed using the Navier-Stokes equations, closed by the Shear Stress Transport (SST) turbulence model. The simulation is performed for the regulation mode at a reduced rotational speed of 28,076 rpm and two IGV angles of rotation in a wide mass flow range. …”
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  8. 488

    Analysis of the Effectiveness of Variants of the Exhaust Compartment of a Steam Turbine by V. G. Solodov, V. A. Konev

    Published 2020-08-01
    “…The flow in each computational subdomain is described by the complete system of non-stationary Reynolds – Favre equations averaged by Navier – Stokes. Turbulent effects are described with the SST Menter model in the stage, and with the modified Spalart – Allmaras turbulence model in the path. …”
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  9. 489

    Comparative Study on the Evolution of Airflow Temperature and Valid Ventilation Distance Under Different Cooling Strategies in High-Temperature Tunnels for Mining Thermal Energy by Fangchao Kang, Jinlong Men, Binbin Qin, Guoxi Sun, Ruzhen Chen, Weikang Zhang, Jiamei Chen, Zhenpeng Ye

    Published 2025-01-01
    “…We investigate variations in airflow temperature and valid ventilation distance (VVD) and compare them with two other cooling strategies: natural tunnels only employing mechanical ventilation (NT strategy) and tunnels featuring thermal insulation layers (TIL strategy), through the 3D k-ε turbulence model in COMSOL Multiphysics. Our findings indicate that (1) the TIL-HE strategy demonstrates superior cooling performance, resulting in significantly lower airflow temperatures and markedly higher VVD; (2) higher water velocity and more heat exchangers contribute to lower airflow temperature and prolonged VVD; (3) positioning the heat exchangers within the surrounding rock rather than inside the insulation layer leads to even lower airflow temperature and longer VVD. …”
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  10. 490

    Comparison of Option Pricing with Stochastic Volatility in Heston and Heston Nandi Model by Mohammad Reza Haddadi, Hossein Nasrollahi

    Published 2023-12-01
    “…Since the Heston model is one of the effective models among the random turbulence models, in this study, the option pricing under Heston and Heston Nandi random stochastic is discussed, which has been investigated considering the non-normality of the data distribution.   …”
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  11. 491

    A wave-resolving two-dimensional vertical Lagrangian approach to model microplastic transport in nearshore waters based on TrackMPD 3.0 by I. Jalón-Rojas, D. Sous, D. Sous, V. Marieu

    Published 2025-01-01
    “…This approach introduces novel features such as coupling with advanced turbulence models, simulating resuspension and bedload processes, implementing advanced settling and rising velocity formulations, and enabling parallel computation. …”
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  12. 492

    Conceptual model of sustainable development of pedagogical staff competences in quality assurance of higher education by Andrii Biloshchytskyi, Andrii Biloshchytskyi, Oleksandr Kuchanskyi, Oleksandr Kuchanskyi, Oleksandr Kuchanskyi, Yurii Andrashko, Aidos Mukhatayev, Khanat Kassenov

    Published 2025-02-01
    “…Creating strategies to improve the quality of higher education is the key task of higher education institutions in the conditions of rapid changes in the content of competencies, in particular IT-competencies, as well as in the conditions of turbulence in the external environment, in particular epidemics, military conflicts, etc. …”
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  13. 493

    Numerical Simulation of Characteristics of Wind Field at Bridge Sites in Flat and Gorge Terrains under the Thunderstorm Downburst by Peng Hu, Yilin Chen, Yan Han, Fei Zhang, Yongjian Tang

    Published 2021-01-01
    “…To investigate the effects of thunderstorm downburst on the characteristics of wind field at bridge sites in flat and gorge terrains, firstly, numerical simulation of wind fields in the flat terrain under the thunderstorm downburst was conducted through the SST k-ω turbulence model, combined with the impinging jet technology. …”
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  14. 494

    ASSESSING THE RESULTS OF TRAINING IN DIGITAL ENTREPRENEURSHIP IN THE AGE OF HIGH AND DEEP TECH by Oleg Kaminsky, Julia Yereshko, Sergii Kyrychenko, Maryna Duchenko

    Published 2024-02-01
    “… Digital transformation and the rise of Industry 4.0 in times of turbulence are changing the way organizations operate and interact with the people they serve. …”
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  15. 495

    Numerical simulation of magnetically driven nanomaterial rotating flow configured by convective-radiative cone with chemical reaction by Cyrus Raza Mirza, Muhammad Salman Kausar, Muhammad Nasir, M. Waqas, Nurnadiah Zamri, Iskandar Shernazarov, S.U. Khan, Nidhal Ben Khedher

    Published 2025-03-01
    “…In contrast to orthodox liquids, the haphazard movement of nanoparticles within nanoliquid strengthens fluid turbulence, accomplishes superior thermal effectiveness and declines thermal resistance. …”
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  16. 496

    GDP OF THE G7 AFTER THE FINANCIAL CRISIS by Svitlana Radziyevska

    Published 2024-12-01
    “…The contradictory course of globalization will push nations towards self-sufficiency, as well as cooperation with others on the regional level in order to survive amid turbulence. The leaders, as well as the leaders-to-be are expected not only to cooperate with each other, but also to take more responsibility for the future of the global world. …”
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  17. 497

    Principles of Agronomy for Sustainable Agriculture /

    Published 2016
    Table of Contents: “…Radiation balance -- Chapter 4. Wind and turbulence -- Chapter 5. Air temperature and humidity -- Chapter 6. …”
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  18. 498

    Diagnosis and Numerical Simulation of Low-level Wind Shear over the Hengduan Mountains in Winter by Ren Juzhang, Yang Xue, Tao Yun, Fu Zhijia, Chen Yan, Zhong Yahan, Wang Man, Jin Yan

    Published 2025-01-01
    “…The phenomenon results in a downwind shear layer, which leads to aircraft turbulence.…”
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  19. 499

    Forecasting contrail climate forcing for flight planning and air traffic management applications: the CocipGrid model in pycontrails 0.51.0 by Z. Engberg, R. Teoh, T. Abbott, T. Dean, M. E. J. Stettler, M. L. Shapiro

    Published 2025-01-01
    “…Here, we develop a contrail forecasting tool that produces global maps of persistent contrail formation and their EF<span class="inline-formula"><sub>contrail</sub></span> formatted to align with standard weather and turbulence forecasts for integration into existing flight planning and air traffic management workflows. …”
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  20. 500

    Free-Space Optical (FSO) Satellite Networks Performance Analysis: Transmission Power, Latency, and Outage Probability by Jintao Liang, Aizaz U. Chaudhry, Eylem Erdogan, Halim Yanikomeroglu, Gunes Karabulut Kurt, Peng Hu, Khaled Ahmed, Stephane Martel

    Published 2024-01-01
    “…Furthermore, we analyze outage probability performance of optical uplink/downlink due to atmosphere attenuation and turbulence.…”
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