Showing 601 - 620 results of 926 for search '"turbulence"', query time: 0.08s Refine Results
  1. 601

    Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece by Tao Xu, Hang Xiu, Junlou Li, Haichao Ge, Qing Shao, Guang Yang, Zhenglei Yu

    Published 2014-01-01
    “…Heat transfer augmentation in the coolant chamber was achieved through the use of pin fin structure and mist cooling, which could increase the turbulence and heat transfer efficiency. The present research is focused on heat transfer and pressure characteristics of the impinging cooling in the coolant chamber using FLUENT software. …”
    Get full text
    Article
  2. 602

    CFD Simulation of an Industrial Dust Cyclone Separator: A Comparison with Empirical Models: The Influence of the Inlet Velocity and the Particle Size on Performance Factors in Situ... by Tchinda Vermande Paganel, Epee Fabrice Alban, Mezoue Adiang Cyrille, Claude Valery Ngayihi Abbe

    Published 2024-01-01
    “…The present work is dedicated to the study of multiphase turbulent and three-dimensional rotational flow in dust cyclones, a contribution to air pollution control. …”
    Get full text
    Article
  3. 603

    On the Formation of Planets in the Milky Way’s Thick Disk by Tim Hallatt, Eve J. Lee

    Published 2025-01-01
    “…One key difference between the two stellar populations is the time at which they emerged: thick-disk stars are the likely product of cosmic noon (redshift z ∼ 2), an era characterized by high star formation rate, massive and dense molecular clouds, and strong supersonic turbulence. Solving for the background radiation field in these early star-forming regions, we demonstrate that protoplanetary disks at cosmic noon experienced radiation fields up to ∼7 orders of magnitude more intense than in solar neighborhood conditions. …”
    Get full text
    Article
  4. 604

    Enhancement of tetracycline removal in aquatic environment by nano-pyrite/H_2 O_2/ultrasound as a sono-Fenton process by Elham Aseman-Bashiz, Hossein Sayyaf

    Published 2023-06-01
    “…Meanwhile, US irradiation caused fluidization, turbulence, mass transfer, and nano-pyrite surface cleaning due to its cavitation and oscillation effects. …”
    Get full text
    Article
  5. 605

    Wavefront Correction for Extended Sources Imaging Based on a 97-Element MEMS Deformable Mirror by Huizhen Yang, Lingzhe Tang, Zhaojun Yan, Peng Chen, Wenjie Yang, Xianshuo Li, Yongqi Ge

    Published 2024-12-01
    “…In this study, our focus is on analyzing the ability of a 97-element MEMS (Micro-Electro-Mechanical System) DM to correct blurred images of extended sources affected by atmospheric turbulence. The RUN optimizer is employed as the control method to evaluate the correction capability of the DM through simulations and physical experiments. …”
    Get full text
    Article
  6. 606

    Structure Functions of Rotation Measures Revealing the Origin of Fast Radio Bursts by Rui-Nan Li, Zhen-Yin Zhao, Qin Wu, Shuang-Xi Yi, Fa-Yin Wang

    Published 2025-01-01
    “…Structure function (SF) analysis is a powerful tool for studying plasma turbulence. Theoretically, the SF of Faraday rotation measure (RM) is expected to include a geometric component due to the relative orientation of sight lines through an ordered magnetic field. …”
    Get full text
    Article
  7. 607

    Theoretical and Experimental Evaluation of a Compact Aerosol Wind Tunnel and its Application for Performance Investigation of Particulate Matter Instruments by Prashant Patel, Shankar G. Aggarwal

    Published 2021-03-01
    “…The air velocity and turbulence profiles were uniform, displaying ≤ 10% variation in the section we tested. …”
    Get full text
    Article
  8. 608

    Influence of Channel Regulating Structures on the Transportation and Dissipation of Supersaturated Total Dissolved Gas by Yun Qing, Qian Ma, Ran Li, Xia Shen, XuJin Zhang, LinFeng Han

    Published 2021-01-01
    “…It would significantly change the turbulence intensity and hydropressure of the flow, which dominates the dissipation of TDG. …”
    Get full text
    Article
  9. 609

    A Cosmic Ray Acceleration Mechanism Based on Background Flow Velocity Inhomogeneities Yielding Power-law Spectra by J.-F. Wang, G. Qin

    Published 2025-01-01
    “…In addition, if it is assumed that cosmic rays penetrate compressive MHD waves or turbulence, for quasi-steady states, the spectral index δ of the momentum power law spectrum of cosmic rays is found to be in the range [−5, −3], which includes the observed power law indices of galactic cosmic rays. …”
    Get full text
    Article
  10. 610

    Study on the Influence of Bionic Structure on the Sealing Performance of Centrifugal Pump Sealing Ring by Ye Cai, Zhengpu Xie, Feixiang Yang, Muhan Yan, Chengqi Mou, Zhangcheng Huang, Yuxin Jin, Jiegang Mou, Yunqing Gu

    Published 2025-01-01
    “…In order to improve the sealing performance of a sealing ring in order to improve the efficiency of the centrifugal pump, based on the bionics principle, a calculation model for the bionic groove surface sealing ring structure of the centrifugal pump is established, based on the Realizable <i>k</i>-<i>ε</i> turbulence model. The external characteristics, internal flow field distribution and leakage characteristics of centrifugal pumps with different bionic groove surface structures and groove diameters are analyzed, and the influence of bionic surface structure on the sealing performance of the centrifugal pump sealing ring is studied. …”
    Get full text
    Article
  11. 611

    Perfection of the mechanism of planning of innovative activities based on the system-transdisciplinary approach by P. M. Gureev, V. N. Grishin, E. N. Dunenkova, S. I. Onishchenko

    Published 2020-04-01
    “…The use of a transdisciplinary systematic approach to innovation planning allows you to use new methodological planning tools, strengthen the systematic nature of planned activities, more clearly define their content and sequence.Various variants of the classification of scientific approaches according to the criterion of the degree of completeness of cognition of the surrounding world have been analysed, the basic transdisciplinary methodological approaches according to the content criteria and possibilities have been compared, such as: the theory of autopoiesis, the theory of chaos and complexity, the theory of fractals, the theory of turbulence and the theory of economic genetics.An important factor in the proposed methodology is the use of the evolutionary property of the development of organizational systems in combination with the possibility of revolutionary transformations at certain stages of development that determine the susceptibility of the organizational system to innovations. …”
    Get full text
    Article
  12. 612

    Resolved Convection in Hydrogen-rich Atmospheres by Jacob T. Seeley, Robin D. Wordsworth

    Published 2025-01-01
    “…This should fundamentally alter the dynamics of moist convection, but the low-MMW regime has previously been explored primarily via 1D theories that cannot capture the complexity of moist turbulence. Here, we use a 3D cloud-resolving model to simulate moist convection in atmospheres with a wide range of background MMWs and confirm that a humidity threshold for buoyancy reversal first derived by T. …”
    Get full text
    Article
  13. 613

    Enhancement of Aeroengine Combustion Chamber Air Cooling Holes Design for Emission Reduction and Pattern Factor Control by Masoud Hajivand

    Published 2024-12-01
    “…Both thermal and prompt formation mechanisms of NOx were considered, while k-ε model for turbulence was adapted to capture the nature of emission. …”
    Article
  14. 614

    Catastrophic and violent tornadoes: a detailed review of physical-mathematical models by Sergey A. Arsen’yev, Lev V. Eppelbaum

    Published 2024-11-01
    “…In this case, the theory of mesoscale turbulence is used, which allows for the phenomenon of the red turbulent cascade: the energy transfer from smaller turbulent eddies to the region of large scales. …”
    Get full text
    Article
  15. 615

    Optimization of hydrothermal performance in industrial heat sinks with innovative perforated pin fin designs: A numerical approach by Fatema-Tuj Zohora, Mohammad Rejaul Haque, Nabil Mohammad Chowdhury, Mostafa Kamal Fahad, Nowroze Farhan Ifraj

    Published 2025-01-01
    “…Three-dimensional incompressible flow simulation is performed with the Fluent software. Modeling turbulence is accomplished by employing the realizable κ-ε models, while the numerical solution of all equations pertaining to fluid flow is carried out with the proper boundary conditions. …”
    Get full text
    Article
  16. 616

    Feasibility and parameter optimization of ground-to-satellite uplink continuous-variable quantum key distribution by Jin Cheng, Yujie Chen, Ao Liu, Xin Sun, Junjie Guo, Bohan Yang, Peng Yin, Wenbo Liu, Lanjian Chen, Chen Dong

    Published 2025-01-01
    “…In this study, the feasibility of the uplink CV-QKD for Very Low Earth Orbit satellite is studied, and the influence of practical factors such as atmospheric turbulence and beam pointing errors under dynamic time-varying satellite orbital parameters is analyzed to model realistic transmission channels. …”
    Get full text
    Article
  17. 617

    Optimization of a Continuous Hybrid Impeller Mixer via Computational Fluid Dynamics by N. Othman, S. K. Kamarudin, M. S. Takriff, M. I. Rosli, E. M. F. Engku Chik, M. A. K. Meor Adnan

    Published 2014-01-01
    “…The determination of RTD using a k-ε turbulence model was performed using CFD techniques. …”
    Get full text
    Article
  18. 618

    A Physically Based Spatial Expansion Algorithm for Surface Air Temperature and Humidity by Hongbo Su, Jing Tian, Renhua Zhang, Shaohui Chen, Yongmin Yang, Yuan Rong, Sujuan Mi, Jianwei Qi

    Published 2013-01-01
    “…An algorithm was developed to expand the surface air temperature and air humidity to a larger spatial domain, based on the fact that the variation of surface air temperature and air humidity is controlled jointly by the local turbulence and the horizontal advection. This study proposed an algorithm which considers the advective driving force outside the thermal balance system and the turbulent driving force and radiant driving force inside the thermal balance system. …”
    Get full text
    Article
  19. 619

    Angular Power Spectrum of TeV–PeV Cosmic-Ray Anisotropies by Wenyi Bian, Gwenael Giacinti, Brian Reville

    Published 2025-01-01
    “…Simulations of the cosmic-ray (CR) anisotropy down to TeV energies are presented, using turbulence parameters consistent with those inferred from observations of the interstellar medium. …”
    Get full text
    Article
  20. 620

    American struggle for global leadership and the strategic options of Serbia by Lišanin Mladen

    Published 2023-01-01
    “…Contemporary turbulence regarding the issue of global leadership (referred to by some authors as "primacy" or "hegemony") takes place within a specific context, manifested through a single fundamental rift: the one based on key actors' attitudes towards the necessity of structural revision of the world system, contrasted with aspirations to maintain the status quo. …”
    Get full text
    Article