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521
Computational assessment of winglet-induced variations in pressure coefficients on NACA 4418 aircraft wings
Published 2025-01-01“…Our simulations utilized a high-fidelity turbulence model to accurately capture the complex flow dynamics near the wing surface. …”
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522
Harmonization and Verification of Three National European Icing Forecast Models Using Pilot Reports
Published 2022-01-01“…The Single European Sky Air Traffic Management Research (SESAR) program aims at modernizing and harmonizing the European airspace, which currently has a strongly fragmented character. Besides turbulence and convection, in-flight icing is part of SESAR and can be seen as one of the most important meteorological phenomena, which may lead to hazardous flight conditions for aircraft. …”
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523
Computational and experimental representation of simplified gas turbine bearing chamber geometries
Published 2025-03-01“…The experimental setup is complemented by CFD modelling using the Volume of Fluid (VOF) approach with Large Eddy Simulations (LES) to model turbulence.Validation demonstrates high level of accuracy, with film thickness measurements showing an error margin of 0.22 % at lower flow rates and up to 1.7 % at higher velocities. …”
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524
Numerical Simulation of a Partly Filled Rectangular Tank with Fuel Oil
Published 2023-09-01“…The usage of vertical shields allows for around 20% of the greatest contact energy to be deflected, which is attributed to the potential of generating turbulence and vortices by the baffle. …”
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525
Modelling of Wind Pressure Coefficients on C-Shaped Building Models
Published 2018-01-01“…For this study, numerical analysis has been carried out using ANSYS Fluent with k-ε model of turbulence. Computational fluid dynamics (CFD) techniques is used to evaluate the surface pressure on various faces of the model for angle of attack of 0° to 180° at an interval of 30° in a subsonic open circuit wind tunnel. …”
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526
Thermal Performance Improvement of Solar Parabolic Dish System Using Modified Spiral Coil Tubular Receiver
Published 2021-01-01“…This innovative design of the absorber consists of a feature of a 5 mm extension to the spiral tube at the exit and entry; hence, the turbulence effect could be overcome. Experimental thermal efficiency was found the highest (i.e., ηthmax=75.98%) for May. …”
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527
Comparative analysis and manufacturing of airfoil structures suitable for use at low speeds
Published 2022-12-01“…Wing profiles created at 0 to 20-degree attack angles are calculated in the simulation area equal to the actual wind tunnel scale, and equations are solved using the RNG k-Epsilon turbulence model. The process of developing the grids was realized with Ansys Mesher software. …”
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528
Numerical Analyses of Static Characteristics of Liquid Annular Seals Based on 2D LBM-LES Model
Published 2021-01-01“…In this paper, a two-dimensional (2D) mathematical model for predicting the leakage flow rates and static characteristics of liquid seal is established, based on the lattice Boltzmann method (LBM) combined with the D2G9 velocity model for incompressible fluid and large eddy simulation (LES) turbulence model, in which the transformation equation of reference pressure is developed with the Bernoulli equation. …”
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529
Sink or break: Oil increases resistance of phytoplankton aggregates to fragmentation
Published 2025-02-01“…Using phytoplankton aggregates, we demonstrate that marine snow with oil, termed marine oil snow, had a higher resistance to fragmentation compared to marine snow without oil when exposed to turbulence ex situ. At moderate shear levels, typical of the ocean mixed layer, 17% of marine snow without oil broke, whereas 63% of marine snow fragmented at intermediate shear. …”
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530
RANCANG BANGUN MODEL PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO (PLTMH) MENGGUNAKAN PADDLE BREAST WHEEL
Published 2024-12-01“…The decrease in the wheel's rotation is related to the increase in turbulence (collision) due to the large discharge of water against the wheels' walls. …”
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531
Topology controls flow patterns in active double emulsions
Published 2025-02-01“…These emulsions can be self-assembled in the lab, and provide a pathway to form flow and topological patterns in active matter in a controlled way, as opposed to bulk systems that typically yield active turbulence.…”
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532
Evolution of power as an indicator of structural transformations: political and managerial aspect
Published 2019-06-01“…The efficiency of power (fighting corruption, ensuring of Gross Domestic Product (GDP) growth, solving social problems, etc.) is due to its ability to respond adequately to challenges and find consensus in decision-making in political turbulence.…”
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533
The Optimal Hydraulic Design of Centrifugal Impeller Using Genetic Algorithm with BVF
Published 2014-01-01“…Using Reynolds averaged N-S equations with a RNG k-ε two-equation turbulence model and log-law wall function to solve 3D turbulent flow field in the flow channel between blades of 6 designed impellers by CFD code FLUENT, the investigation on velocity distributions, pressure distributions, boundary vorticity flux distributions on blade surfaces, and hydraulic performance of impellers was presented and the comparisons of impellers by different design methods were demonstrated. …”
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534
THE IMPACTS OF ECONOMIC CRISIS ON FIRM-LEVEL INNOVATION IMPLEMENTATION: IMPLICATIONS FOR SUSTAINABLE DEVELOPMENT IN THE CONSTRUCTION INDUSTRY
Published 2019-09-01“…In the case of Nigeria, it has been argued that the rather frequent economic turbulence it experiences significantly affects firm-level innovation implementation in the local construction industry. …”
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535
A numerical assessment of the heterogeneous effects of innovative shroud profiles for horizontal axis wind turbine
Published 2025-01-01“…A numerical investigation of various shrouds was conducted to identify the relationship between power augmentation and wind speed for wind turbines. The turbulence model SST k-ω was selected during the computational studies. …”
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536
Simulation Study on Dynamics of Hydraulic Turbines Used in Drilling Engineering
Published 2020-01-01“…Using the CFD (computational fluid dynamics) method, based on the realizable k-ɛ turbulence model and Euler multiphase flow model, the effects of different external loads, blade numbers, blade installation angles, and flow rates on the force condition of turbine and the influence of different solid contents, particle sizes, and densities on turbine performance were studied. …”
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537
Estimation of bed shear stress and settling velocity with inertial dissipation method of suspended sediment concentration in cohesive sediment environments
Published 2024-12-01“…In steady uniform boundary layers, the dynamics of sediment resuspension and transport are controlled by near-bed turbulence, often quantified by bed shear stress, τb. …”
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538
Numerical Simulations on the Extinguishing Effect of Water Mist System with Different Parameters of Longitudinal Ventilation in Curve Tunnel Fire
Published 2021-01-01“…Once a fire occurs in a long curve tunnel, the mixing of hot smoke flow and cold air leads to turbulence due to the curvature’s impact. This phenomenon results in a greater thermal pressure difference at the fire source and a substantially greater temperature field than in the straight tunnel. …”
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539
A numerical study on the wave loading on offshore structures of different cross-sectional geometries under the action of regular waves
Published 2023-05-01“…The open-source computational code OpenFOAM v. 4.1 was applied in the considered cases, along with the OlaFlow extension, considering the application of a structured mesh, the VOF (Volume of Fluid) methodology for representing the free surface, and the turbulence modeling according to Reynolds averaged equations (RANS). …”
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540
Reacting Flow Characteristics of Wall-mounted Ramps in Strut-injection Scramjet Combustors under Varying Hydrogen Jet Pressures
Published 2025-02-01“…A numerical investigation is performed using Reynolds Averaged Navier Stokes (RANS) equations in combination with the Shear Stress Transport (SST) k-ω turbulence model to understand flow mechanics at supersonic combustion. …”
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