Showing 661 - 680 results of 696 for search '"turbulence"', query time: 0.05s Refine Results
  1. 661

    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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  2. 662

    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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  3. 663

    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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  4. 664

    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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  5. 665

    Magnetohydrodynamics of nanofluid internal forced convection: A review and outlook for practical applications by Victor O. Adogbeji, Emmanuel O. Atofarati, Mohsen Sharifpur, Josua P. Meyer

    Published 2025-01-01
    “…Despite this growing interest, a critical gap remains in understanding the combined impact of Fe3O4 and its hybrid nanofluids under magnetic fields, especially in turbulent and transition flow regimes of internal forced convection. …”
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  6. 666

    Understanding the formation of a low-pressure pedestal in the presence of a strong internal transport barrier in DIII-D high βp plasmas by X.R. Zhang, X. Jian, Y.R. Zhu, Y.P. Zou, Z.Y. Li, Y.J. Zhou, L.Z. Liu, S. Zheng, Z.X. Wang, W. Chen, S.Y. Ding, A.M. Garofalo, V.S. Chan, G.Q. Li

    Published 2025-01-01
    “…The combination of low pedestal and high magnetic shear further enhances the turbulent transport across the whole pedestal, consistent with power balance analysis. …”
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  7. 667

    Uncertainties in the finite-time Lyapunov exponent in an ocean ensemble prediction model by M. Matuszak, J. Röhrs, P. E. Isachsen, P. E. Isachsen, M. Idžanović

    Published 2025-02-01
    “…Generally, trajectory simulations, such as Lagrangian trajectories, inherit uncertainty from the underlying ocean model, bearing substantial uncertainties as a result of chaotic and turbulent flow fields. As the FTLE characterizes the flow, which may impact particle transport, we aim to investigate the uncertainty of FTLE fields at any given time using an ensemble prediction system (EPS) to propagate velocity field uncertainty into the FTLE analysis. …”
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  8. 668

    Thermal optimization and exergy efficiency of two new parabolic solar collectors using response surface methodology by Samaneh Baharloui, Mohammad Mohsen Peiravi, Mofid Gorji bandpy

    Published 2025-01-01
    “…This research examines the heat transfer performance of PTSC influence of different baffle types, including circular and trapezoidal shapes, integrated with turbulent nanofluid flow in the receiver tube. The inlet temperature of the heat transfer fluid was set at 120 °C, with the outlet temperature fluctuating between 250 °C to 450 °C. 3D computational fluid dynamics simulations using Ansys Fluent software and optimization process based on response surface methodology (RSM) using Design Expert analysis investigated entropy, thermal power, exergy efficiency, thermal efficiency and effective Prandtl number (Pr) for various solar panel configurations. …”
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  9. 669

    Determining Planetary Boundary Layer Height by Micro-pulse Lidar with Validation by UAV Measurements by Yueh-Chen Wang, Sheng-Hsiang Wang, Jasper R. Lewis, Shuenn-Chin Chang, Stephen M. Griffith

    Published 2021-01-01
    “…PBLH determination with lidar data depends primarily on the characteristic turbulent motions in the atmosphere and the geophysical location. …”
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  10. 670

    DEVELOPMENT OF A NEW GENERATION OF TORNUM REX MINING GRAIN DRYERS AND THEIR DESIGN METHODS by V. Fitsyk

    Published 2024-12-01
    “…The flow in the dryer was considered as steady, laminar and turbulent. It is important that the grain is dried evenly, since uneven drying can lead to spoilage of the final product during storage. …”
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  11. 671

    Venezuela: Political Confrontation and the World Community by Z. W. Iwanowski, D. M. Rozental

    Published 2020-11-01
    “…The inability or unwillingness of external forces to reach compromise and to bring the parties to the negotiating table can pose a threat to peace and international security.As a result, Venezuela has become one of the most turbulent countries in the region. At the same time, the repeated outbursts of protest waves are significantly different from popular uprisings in other Latin American states. …”
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  12. 672

    The environmental impact of health care for musculoskeletal conditions: A scoping review. by Bayden J McKenzie, Romi Haas, Giovanni E Ferreira, Chris G Maher, Rachelle Buchbinder

    Published 2022-01-01
    “…Of 24 original research studies, 11 measured environmental impact relating to climate change in orthopaedics (n = 10), and medical aids for the knee (n = 1), one measured energy expenditure of laminar versus turbulent airflow ventilation systems in operating rooms during simulated hip replacements and 12 measured waste associated with orthopaedic surgery but did not relate waste to greenhouse gas emissions or environmental effects. …”
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  13. 673

    Cultural competence, professional values, and spiritual well-being in nursing interns: a descriptive cross-sectional study by Amir Mohamad Nazari, Seyedeh Narjes Mousavizadeh, Zahra Khorrami Khoramabadi, Vahid Yousofvand, Seyed Mohammad-Javad Ghazavi Dozein

    Published 2025-01-01
    “…Abstract Background Cultural competence, professional values, and spiritual well-being are among the topics that are widely considered today in response to turbulent and complex environments in organizations. …”
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  14. 674

    Simultaneous Observation of Equatorial Plasma Bubbles and Traveling Ionospheric Disturbances Over Indonesia Following the 15 January 2022 Tonga Volcano Eruption by Asnawi Husin, Varuliantor Dear, Agri Faturahman, Sefria Anggarani, Annis Siradj Mardiani, Adi Purwono, Jiyo Harjosuwito, Rezy Pradipta

    Published 2025-01-01
    “…There were enhancements in the rate‐of‐TEC index (ROTI) and S4 scintillation index, indicating the presence of ionospheric density irregularities. A turbulent ionospheric F‐layer, due to these EPBs and TIDs, caused either spread‐F echoes or a loss of F‐region traces in the ionograms. …”
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  15. 675

    The Role of the Military-Political Elite of Egypt in the Struggle for National Independence in the Post-World War II Period (1945-1952) by I. E. Ibragimov

    Published 2019-09-01
    “…During the second quarter of the 20 th century the Egyptian society experienced fairly turbulent and eventful political process that influenced the further development of the country. …”
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  16. 676

    The Anti-Hitler Coalition: From Enmity to Military Alliance — A Formula for Success by A. Yu. Borisov

    Published 2020-11-01
    “…In order to combat these attempts it is necessary to examine once again a turbulent history of the inter-war period and, particularly, the reasons why all attempts to form a united antifascist front had failed in the 1930s, but eventually led to the formation of the anti-Hitler coalition.The paper focuses on a complex set of political considerations, including cooperation and confrontation, mutual suspicions and a fervent desire to find an ally in the face of growing international tensions, which all together determined the dynamics of relations within a strategic triangle of the Soviet Union — the United States — Great Britain in the late 1930s and early 1940s. …”
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  17. 677

    Investigation of the Flow Field Characteristics of Aortic Bileaflet Mechanical Heart Valves with Different Leaflet Shapes Using PIV by Y. Qiang, T. C. Duan, M. Z. Zhang, L. Qi, L. J. Wei

    Published 2025-02-01
    “…Curved leaflets minimized turbulent shear stress on blood cells, reducing platelet activation and lowering the incidence of thromboembolism. …”
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  18. 678

    Assessing the salinization mechanisms of coastal brackish springs by Sanz, Esteban, Carrera, Jesús, Ayora, Carlos, Barón, Alfredo, González, Concha

    Published 2023-03-01
    “…To this end, we derive the equations governing variable-density turbulent flow through the conduits. These turn out to be similar to the traditional ones, except that (1) Bernouilli’s head (energy per unit weight) is substituted by the energy per unit volume, and (2) this energy is not a potential, as a flow path dependent term needs to be added. …”
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  19. 679

    Women’s mental health in the doctoral context: Protective function of the psychological capital and academic motivation by Angel Deroncele-Acosta, Roger Pedro Norabuena-Figueroa, Emerson Damian Norabuena-Figueroa

    Published 2025-01-01
    “…Background: Science recognizes the anxieties, depression, stress, and “turbulences” that women face in doctoral studies, but women’s mental health in this context is still little addressed, even though it is a critical aspect for the well-being, persistence, and success of women doctoral candidates, who continue to be underrepresented in many professional fields. …”
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  20. 680

    HCG 57: Evidence for Shock-heated Intergalactic Gas from X-Rays and Optical Emission Line Spectroscopy by Ewan O’Sullivan, P. N. Appleton, B. A. Joshi, Lauranne Lanz, Katherine Alatalo, Jan M. Vrtilek, Andreas Zezas, Laurence P. David

    Published 2025-01-01
    “…These different shock velocities can be reconciled by considering the contributions of rotation to collision velocity in different parts of the disks, and the clumpy nature of the preshock medium in the galaxies, which likely lead to different shock velocities in different components of the turbulent postshocked gas. We examine the diffuse X-ray emission in the group members and their associated point sources, identifying X-ray active galactic nuclei in HCG 57A, B, and D. …”
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