Results 31 to 40 of about 36,351 (119)

A Comparative Computational Fluid Dynamics Study on an Innovative Exhaust Air Energy Recovery Wind Turbine Generator

open access: yesEnergies, 2016
Recovering energy from exhaust air systems of building cooling towers is an innovative idea. A specific wind turbine generator was designed in order to achieve this goal.
Seyedsaeed Tabatabaeikia   +6 more
doaj   +1 more source

Data-driven RANS closures for improving mean field calculation of separated flows

open access: yesFrontiers in Physics
Reynolds-averaged Navier-Stokes (RANS) simulations have found widespread use in engineering applications, yet their accuracy is compromised, especially in complex flows, due to imprecise closure term estimations. Machine learning advancements have opened
Zhuo Chen, Jian Deng
doaj   +1 more source

Numerical and physical model study of a vertical slot fishway

open access: yesJournal of Hydrology and Hydromechanics, 2014
This paper presents the results of an experimental and numerical study of a vertical slot fishway (VSF). A 2-D depth-averaged shallow water numerical model PCFLOW2D coupled with three different turbulent models (constant eddy viscosity, Smagorinsky and k
Bombač Martin   +3 more
doaj   +1 more source

Hydrodynamic Forces and Wake Distribution of Various Ship Shapes Calculated Using a Reynolds Stress Model

open access: yesJournal of Marine Science and Engineering, 2022
The Reynolds-averaged Navier–Stokes (RANS)-based computational fluid dynamics (CFD) calculation using a two-equation turbulence model, such as the k–omega shear-stress transport (SST) model, is a mainstream method with sufficient accuracy for the ...
Satoshi Matsuda, Tokihiro Katsui
doaj   +1 more source

Numerical-experimental comparison of radial fans applied in pneumatic transport of agricultural fertilizer spreaders [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
This study presents a numerical and experimental comparison of two different types of radial fans used in an agricultural fertilizer spreader at a rotation of 4000 rpm.
Marcelo L. de F. Fogal   +3 more
doaj   +2 more sources

Experimental and Numerical Study of Shock Waves in Contractions [PDF]

open access: yesعلوم و مهندسی آبیاری, 2014
Shock waves are often occurring during passage of supercritical flow in the non-prismatic channels. In the present study, values of height and instantaneous velocities were measured in various points of shock waves observed in two contractions with fixed
Mohammadreza Nikpoor   +4 more
doaj  

The effect of slip on the development of flow separation due to a bump in a channel based on a two-fluid turbulence model [PDF]

open access: yesE3S Web of Conferences
In the paper, two-fluid turbulence model simulations were used to calculate the flow of a statistically two-dimensional turbulent boundary layer over a hump.
Madaliev Murodil   +6 more
doaj   +1 more source

Numerical Simulation of Atmospheric Turbulence for Assessment of Wind Turbine

open access: yesJournal of Fluid Science and Technology, 2011
To obtain basic understanding for the development of atmospheric turbulence assessment technique for wind-energy application, we examine the performance of turbulence simulation using the large-eddy simulation technique, focusing on grid dependency of ...
Yasuo HATTORI   +7 more
doaj   +1 more source

Computational Fluid Dynamics Turbulence Model and Experimental Study for a Fontan Cavopulmonary Assist Device. [PDF]

open access: yesJ Biomech Eng, 2023
Sarfare S   +9 more
europepmc   +1 more source

Investigation of the effect of turbulence models for CFD simulations of dynamic airfoils

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi
This study presents a numerical investigation into the aerodynamic behavior of a pitching NACA 0012 airfoil under dynamic conditions. The analysis was carried out using a sliding mesh method in Fluent, incorporating sinusoidal pitching motion with ...
Sinem Keskin , Mustafa Serdar Genç
doaj   +1 more source

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