Results 21 to 30 of about 208,604 (196)

Progress in Phenomenological Modeling of Turbulence Damping around a Two-Phase Interface

open access: yesFluids, 2019
The presence of a moving interface in two-phase flows challenges the accurate computational fluid dynamics (CFD) modeling, especially when the flow is turbulent.
Wenyuan Fan, Henryk Anglart
doaj   +1 more source

Numerical Study of Velocity and Mixture Fraction Fields in a Turbulent Non-Reacting Propane Jet Flow Issuing into Parallel Co-Flowing Air in Isothermal Condition through OpenFOAM

open access: yesAppliedMath, 2023
This research employs computational methods to analyze the velocity and mixture fraction distributions of a non-reacting Propane jet flow that is discharged into parallel co-flowing air under iso-thermal conditions.
Abdolreza Aghajanpour   +1 more
doaj   +1 more source

Bubble characteristics and turbulent dissipation rate in horizontal bubbly pipe flow

open access: yesAIP Advances, 2021
The energy dissipation rate is a crucial parameter for system control and turbulence modeling but is difficult to quantify in gas–liquid two-phase flows. Little relevant information is available, especially in horizontal pipe flows.
Weiyang Zhao   +4 more
doaj   +1 more source

Water Entry of a Heated Axisymmetric Vertical Cylinder

open access: yesEnergies, 2023
The computational model that is able to estimate the temperature distribution inside a solid specimen during the film boiling phase of immersion quenching (water entry) process has been presented in this paper.
Alen Cukrov   +4 more
doaj   +1 more source

Inclusion of turbulence in solar modeling [PDF]

open access: yes, 2001
The general consensus is that in order to reproduce the observed solar p-mode oscillation frequencies, turbulence should be included in solar models. However, until now there has not been any well-tested efficient method to incorporate turbulence into ...
Balmforth N.   +11 more
core   +2 more sources

Impact of the turbulence modeling approach on the accuracy of the fan noise level prediction

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
The fan is the dominant source of noise for modern high bypass ratio aircraft engines. The article presents the results of investigating the influence of the approach to modeling the turbulence in modeling fan stage noise generation on the results of ...
K. R. Pyatunin, N. V. Arkharova
doaj   +1 more source

Influence of the Reynolds Number on the Aerodynamic Performance of a Small Rotor

open access: yesAerospace, 2023
The use of small rotors has increased due their applications in drones and UAVs. In order to improve the global performance of these aerial vehicles, it is necessary to understand the aerodynamics of small rotors, since this is related to the global ...
Andres M. Pérez Gordillo   +2 more
doaj   +1 more source

Generative modeling of turbulence

open access: yesPhysics 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

RANS versus Scale Resolved Approach for Modeling Turbulent Flow in Continuous Casting of Steel

open access: yesMetals, 2021
Numerical modeling is the approach used most often for studying and optimizing the molten steel flow in a continuous casting mold. The selection of the physical model might very much influence such studies. Hence, it is paramount to choose a proper model.
Jurij Gregorc   +2 more
doaj   +1 more source

Cavitating Langmuir Turbulence in the Terrestrial Aurora [PDF]

open access: yes, 2012
Langmuir cavitons have been artificially produced in the earth's ionosphere, but evidence of naturally-occurring cavitation has been elusive. By measuring and modeling the spectra of electrostatic plasma modes, we show that natural cavitating, or strong,
B. Isham   +6 more
core   +4 more sources

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