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601
Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece
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. …”
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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...
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. …”
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603
On the Formation of Planets in the Milky Way’s Thick Disk
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. …”
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604
Enhancement of tetracycline removal in aquatic environment by nano-pyrite/H_2 O_2/ultrasound as a sono-Fenton process
Published 2023-06-01“…Meanwhile, US irradiation caused fluidization, turbulence, mass transfer, and nano-pyrite surface cleaning due to its cavitation and oscillation effects. …”
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605
Wavefront Correction for Extended Sources Imaging Based on a 97-Element MEMS Deformable Mirror
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. …”
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606
Structure Functions of Rotation Measures Revealing the Origin of Fast Radio Bursts
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. …”
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607
Theoretical and Experimental Evaluation of a Compact Aerosol Wind Tunnel and its Application for Performance Investigation of Particulate Matter Instruments
Published 2021-03-01“…The air velocity and turbulence profiles were uniform, displaying ≤ 10% variation in the section we tested. …”
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608
Influence of Channel Regulating Structures on the Transportation and Dissipation of Supersaturated Total Dissolved Gas
Published 2021-01-01“…It would significantly change the turbulence intensity and hydropressure of the flow, which dominates the dissipation of TDG. …”
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609
A Cosmic Ray Acceleration Mechanism Based on Background Flow Velocity Inhomogeneities Yielding Power-law Spectra
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. …”
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610
Study on the Influence of Bionic Structure on the Sealing Performance of Centrifugal Pump Sealing Ring
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. …”
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611
Perfection of the mechanism of planning of innovative activities based on the system-transdisciplinary approach
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. …”
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612
Resolved Convection in Hydrogen-rich Atmospheres
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. …”
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613
Enhancement of Aeroengine Combustion Chamber Air Cooling Holes Design for Emission Reduction and Pattern Factor Control
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. …”
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614
Catastrophic and violent tornadoes: a detailed review of physical-mathematical models
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. …”
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615
Optimization of hydrothermal performance in industrial heat sinks with innovative perforated pin fin designs: A numerical approach
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. …”
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616
Feasibility and parameter optimization of ground-to-satellite uplink continuous-variable quantum key distribution
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. …”
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617
Optimization of a Continuous Hybrid Impeller Mixer via Computational Fluid Dynamics
Published 2014-01-01“…The determination of RTD using a k-ε turbulence model was performed using CFD techniques. …”
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618
A Physically Based Spatial Expansion Algorithm for Surface Air Temperature and Humidity
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. …”
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619
Angular Power Spectrum of TeV–PeV Cosmic-Ray Anisotropies
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. …”
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620
American struggle for global leadership and the strategic options of Serbia
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. …”
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