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381
Impact of Weather Factors on Unmanned Aerial Vehicles’ Wireless Communications
Published 2025-01-01“…However, adverse weather conditions caused by atmospheric gases, clouds, fog, rain, and turbulence pose challenges by degrading communication signals. …”
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382
A Cloud Detection System for UAV Sense and Avoid: Analysis of a Monocular Approach in Simulation and Flight Tests
Published 2025-01-01“…Cloud avoidance is motivated by several factors, including improving visibility for collision prevention and reducing the risks of icing and turbulence. The described workflow is based on parallelized detection, tracking and triangulation of features with prior segmentation of clouds in the image. …”
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383
Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind Excitation
Published 2018-01-01“…To study the car radiated noise caused by turbulent pressure fluctuation on the side glass under wind excitation, a clay model of DrivAer was constructed except that the front left side window was built with real glass. …”
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384
Numerical and Experimental Studies of Cavitation Behavior in Water-Jet Cavitation Peening Processing
Published 2013-01-01“…The cavitation behavior in this process involves complex and changeable physics phenomena, such as high speed, high pressure, multiple phases, phase transition, turbulence, and unstable features. Thus, the cavitation behavior and impact-pressure distribution in WCP have always been key problems in this field. …”
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385
Further Analysis of Non-Gaussian Wind Pressure Peak Factor Calculation
Published 2021-01-01“…The power spectrum characteristics of fluctuating wind pressure are analysed and the relationship between turbulence characteristic frequency and optimal observation time interval is discussed.…”
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386
Numerical Modeling of Unsteady Cavitating Flows around a Stationary Hydrofoil
Published 2012-01-01“…The 2D calculations are performed by solving the Reynolds-averaged Navier-Stokes equation using the CFD solver CFX with the k-ω SST turbulence model. The local compressibility effect is considered using a local density correction for the turbulent eddy viscosity. …”
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387
Crisis Monitoring in Financial Sectors Using CAMEL Partial Triadic Analysis Model
Published 2025-01-01“…These results are contrasted using the HJ-Biplot and the dynamic HJ-Biplot, which allow for the evaluation of banking scenarios in the context of financial turbulence. When applied to the Ecuadorian banking sector, the model identified significant fluctuations in three key periods: pre-pandemic, pandemic, and the territorial crisis between Russia and Ukraine. …”
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388
Numerical Modelization of the Flow in Centrifugal Pump: Volute Influence in Velocity and Pressure Fields
Published 2005-01-01“…A sensitivity analysis regarding grid quality and turbulence models were also performed. The final impeller model obtained was used for a 3D quasi-unsteady flow simulation of the impeller-volute stage. …”
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389
Ionospheric Disturbances Recorded by DEMETER Satellite over Active Volcanoes: From August 2004 to December 2010
Published 2013-01-01“…The two main types are electrostatic turbulence (type 1, 23.4%) and electromagnetic emissions (type 2, 69.5%). …”
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390
New Findings by High-Order DNS for Late Flow Transition in a Boundary Layer
Published 2011-01-01“…It is believed that the small vortices, and thus turbulence, are generated by the interaction of positive spikes and other higher level vortices with the solid wall. …”
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391
Novel analytical superposed nonlinear wave structures for the eighth-order (3+1)-dimensional Kac-Wakimoto equation using improved modified extended tanh function method
Published 2024-11-01“…Higher-order nonlinear partial differential equations, such as the eighth-order Kac-Wakimoto model, are useful for studying wave turbulence in fluids, where energy transfers across a range of wave numbers. …”
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392
Numerical Study of Wave- and Current-Induced Oscillatory Seabed Response near a Fully Buried Subsea Pipeline
Published 2021-01-01“…In this paper, Biot’s consolidation mode is used to govern the fluid-induced seabed response, and combined Reynolds averaged Navier–Stokes (RANS) equation with the k-ε turbulence model is employed to simulate the fluid propagation. …”
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393
Regional economic integration in the Eurasian Economic Union: theory, lessons from the past and new opportunities
Published 2023-07-01“…The author concludes that it is production cooperation in the real sectors of the economy in the EAEU that will ensure the necessary stability of both national economies and the progressive development of the integration process in the current conditions of the world economic process increased turbulence and the global system transformation. And since the EAEU faces such large-scale and vital tasks, then, according to the author, a reassessment and some redirection of integration efforts are required. …”
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394
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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395
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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396
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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397
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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398
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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399
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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400
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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