Results 21 to 30 of about 36,351 (119)
Validation of a helicopter turbulence model on PUMA 330 dynamics [PDF]
INCAS Bulletin, 2019 Aircraft and algorithms used in automated flight control are always designed for calm atmospheric conditions; therefore, testing their behaviour in realistic atmospheric conditions implies the necessity for efficient turbulence models.
Irina-Beatrice STEFANESCU +2 more
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Meteorologische Zeitschrift, 2015 Raindrops in warm clouds grow faster than predicted by classical cloud models. One of the possible reasons for this discrepancy is the influence of cloud turbulence on the coagulation process.
Theres Riechelmann +4 more
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Feasibility Study of Rans in Predicting Propeller Cavitation in Behind-Hull Conditions
Polish Maritime Research, 2020 The propeller cavitation not only affects the propulsive efficiency of a ship but also can cause vibration and noise. Accurate predictions of propeller cavitation are crucial at the design stage.
Zhang Yuxin +4 more
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Investigation of Discharge Coefficient of Triangular Duckbill Labyrinth Weirs Using Fluent Software and Gray Wolf and Elections Algorithms [PDF]
پژوهشهای زیرساختهای عمرانی, 2021 Labyrinth weirs are important hydraulic structures for water level regulation and flow control in canals, rivers, and reservoirs. Due to the uneven distribution of hydraulic head on the weir crest, the discharge coefficient changes along the labyrinth ...
Somayeh Emami +3 more
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Investigation of Hydraulic Jump Turbulence Parameters in Divergent Rectangular Sections using Fluent Model [PDF]
علوم و مهندسی آبیاری, 2018 A Stilling basin with divergent section has better performance and lower constructional costs than the classic basin. It can easily adapt itself to the upstream and downstream conditions in terms of depths and cross sections (Omid et al., 2007).
Mohammad Reza Nikpour
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Aviation, 2016 The air separators are used to provide safe, clean and appropriate air to the helicopter’s engine. In this operational study, the separation process inside a Ranque-Hilsch air separator cleaning system has been investigated to analyze the impact of ...
Seyed Ehsan Rafiee +1 more
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Assessment of Two Streamline Curvature Correction Methods for an Elliptic Blending Turbulence Model
Applied Sciences, 2022 Using two different methods, a previously developed elliptic blending model (the original STT k-ω-φ-α model) is modified for sensitization to streamline curvature.
Xianglong Yang, Zhenhao Liao, Lei Yang
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The Application of Rotor Control Equivalent Turbulence Input (RCETI) Models to Multi-Rotor Vehicles
AerospaceThis research paper investigates the applicability and scalability of the Rotor Control Equivalent Turbulence Input models for multi-rotor vehicles. Initially, a Rotor Control Equivalent Turbulence Input model is developed for an isolated rotor using ...
Mahmoud A. Hayajnh, J. V. R. Prasad
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The ultimate state of convection: a unifying picture of very high Rayleigh numbers experiments
New Journal of Physics, 2020 The long-standing puzzle of diverging heat transport measurements at very high Rayleigh numbers (Ra) is addressed by a simple model based on well-known properties of classical boundary layers.
Philippe-E Roche
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Engineering Proceedings, 2023 Flow rate measurement is a challenging task in the industry as there is no general-purpose measuring instrument for all appliances. However, orifice plates with multiple holes can be employed to measure the flow rate accurately.
K. J. Mahendra Babu +2 more
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