Results 21 to 30 of about 136,501 (295)

Physical and numerical modeling for the investigation of downstream scour caused by sudden blockage in circular and box culvert inlets [PDF]

open access: yesJournal of Applied Research in Water and Wastewater
This paper presents a comprehensive experimental and numerical study using non-cohesive uniform sand (d50 = 2 mm). The study investigates the impact of local scour downstream of four model culverts with different barrel shapes and inlet blockage sizes ...
Saeed Gohari, Somayeh Karimpour
doaj   +1 more source

Transitional Flow Modeling and Application to High-Lift Multi-Element Airfoil Configurations [PDF]

open access: yes, 2003
To enhance its capabilities to handle flows with transition, a Reynolds averaged Navier-Stokes solver has been extended with regard to the modeling of transitional flow regions based on transition length models and the intermittency function. Because the
Krumbein, A.
core   +1 more source

Análisis numérico 3D de las características del flujo en un canal curvo

open access: yesIngeniería del Agua, 2020
El presente trabajo muestra un análisis numérico 3D del comportamiento del flujo de agua en un canal curvo influenciado por la presencia de un vertedero y una compuerta.
E. Sánchez-Cordero   +2 more
doaj   +1 more source

Three-dimensional numerical analysis of a dam-break using OpenFOAM

open access: yesТруды Института системного программирования РАН, 2018
This paper presents a 3D numerical analysis of flow field patterns in a dam break laboratory scale by applying the numerical code based on Finite Volume Method (FVM), OpenFOAM.
E. Sánchez-Cordero   +2 more
doaj   +1 more source

MIRAI Architecture for Heterogeneous Network [PDF]

open access: yes, 2002
One of the keywords that describe next-generation wireless communications is "seamless." As part of the e-Japan Plan promoted by the Japanese Government, the Multimedia Integrated Network by Radio Access Innovation project has as its goal the development
Havinga, Paul J.M.   +2 more
core   +3 more sources

Assessment of 3D-RANS models for the simulation of topographically forced shallow flows

open access: yesJournal of Hydrology and Hydromechanics, 2016
In this work the performance of Reynolds Averaged Navier-Stokes (RANS) simulations to predict the flow structure developed by the presence of a sidewall obstacle in a uniform open-channel shallow flow is discussed. The tested geometry was selected due to
Safarzadeh Akbar, Brevis Wernher
doaj   +1 more source

Comparison of Different Turbulent Models in Flow on a Rotating Airfoil Considering Centrifugal Acceleration Force, Coriolis Force and Thermal Dissipation [PDF]

open access: yesJournal of Heat and Mass Transfer Research
The moving blades in a circular path have many industrial applications, in more modern turbo machines, such as jet engine compressors, the flow conditions are completely incompressible.
Iraj Fazeli Farsani, Bahman Asadi
doaj   +1 more source

RANS Equations with Explicit Data-Driven Reynolds Stress Closure Can Be Ill-Conditioned

open access: yes, 2019
Reynolds-averaged Navier--Stokes (RANS) simulations with turbulence closure models continue to play important roles in industrial flow simulations. However, the commonly used linear eddy viscosity models are intrinsically unable to handle flows with non ...
Sun, Rui   +3 more
core   +1 more source

RANS study of very high Reynolds-number plane turbulent Couette flow

open access: yesJournal of Mechanical Engineering and Sciences, 2020
The objective of this study is to expound on the deliverables of a steady-state RANS (Reynolds Averaged Navier Stokes) simulation in one of the simplest flows, Couette flow, at a very high Reynolds number.
Akshay Sherikar , P. J. Disimile
doaj   +1 more source

NUMERICAL STUDY ON PROPULSIVE FACTORS IN REGULAR HEAD AND OBLIQUE WAVES

open access: yesBrodogradnja, 2022
This paper applies Reynolds-averaged Navier-Stokes (RANS) method to study propulsion performance in head and oblique waves. Finite volume method (FVM) is employed to discretize the governing equations and SST k-ω model is used for modeling the turbulent ...
Kun Dai   +5 more
doaj   +1 more source

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