Results 31 to 40 of about 21,778,692 (350)

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

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

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

Turbulence Modeling Effects on the CFD Predictions of Flow over a Detailed Full-Scale Sedan Vehicle

open access: yesFluids, 2019
In today’s road vehicle design processes, Computational Fluid Dynamics (CFD) has emerged as one of the major investigative tools for aerodynamics analyses.
Chunhui Zhang   +3 more
semanticscholar   +1 more source

Perspectives on machine learning-augmented Reynolds-averaged and large eddy simulation models of turbulence [PDF]

open access: yesPhysical Review Fluids, 2020
This work presents a review and perspectives on recent developments in the use of machine learning (ML) to augment Reynolds-averaged Navier--Stokes (RANS) and Large Eddy Simulation (LES) models of turbulent flows.
K. Duraisamy
semanticscholar   +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

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

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

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel   +3 more
wiley   +1 more source

A Mathematically Exact and Well-Determined System of Equations to Close Reynolds-Averaged Navier–Stokes Equations

open access: yesMathematics, 2023
Since Sir Osborne Reynolds presented the Reynolds-averaged Navier–Stokes (RANS) equations in 1895, the construction of complete closure for RANS equations has been regarded as extremely challenging.
Sungmin Ryu
doaj   +1 more source

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