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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Comparison of the results of applying the turbulence model VT−92 and two-fluid model to the problem of a subsonic axisymmetric jet [PDF]
E3S Web of Conferences, 2023 This article studies an axisymmetric subsonic jet based on modern turbulence models. This task, despite its simplicity, is a rather complex problem for modeling turbulence.
Ibrokhimov Abdulfatto +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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A physical-space version of the stretched-vortex subgrid-stress model for large-eddy simulation [PDF]
, 2000 A physical-space version of the stretched-vortex subgrid-stress model is presented and applied to large-eddy simulations of incompressible flows. This version estimates the subgrid-kinetic energy required for evaluation of the subgrid-stress tensor using
Chan, Daniel C. +2 more
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Evaluation and application of the Baldwin-Lomax turbulence model in two-dimensional, unsteady, compressible boundary layers with and without separation in engine inlets [PDF]
There is a practical need to model high speed flows that exist in jet engine inlets. The boundary layers that form in these inlets may be turbulent or laminar and either separated or attached.
Granville P.S. +5 more
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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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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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Weak and strong regimes of incompressible magnetohydrodynamic turbulence
, 2009 It is shown that in the framework of the weak turbulence theory, the autocorrelation and cascade timescales are always of the same order of magnitude. This means that, contrary to the general belief, any model of turbulence which implies a large number ...
G. Gogoberidze +3 more
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Generative modeling of turbulence
Physics of Fluids, 2022 We present a mathematically well-founded approach for the synthetic modeling of turbulent flows using generative adversarial networks (GAN). Based on the analysis of chaotic, deterministic systems in terms of ergodicity, we outline a mathematical proof that GAN can actually learn to sample state snapshots from the invariant measure of the chaotic ...
C. Drygala +3 more
openaire +2 more sources
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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