Results 31 to 40 of about 305,370 (309)

RANS Study on the Impact of Equivalence Ratio on Natural Gas/Diesel-Fueled Combustion in RCCI Engine [PDF]

open access: yesJournal of Applied and Computational Mechanics
The primary reason in favor of Reactivity Controlled Compression Ignition (RCCI) is that combustion occurs at low temperature, leading to low thermal NOx. Using the RCCI approach is highly demanded due to stringent emission laws.
Fathi Hamdi   +2 more
doaj   +1 more source

Reinforcement Learning Based Dynamic Function Splitting in Disaggregated Green Open RANs [PDF]

open access: yesICC 2021 - IEEE International Conference on Communications, 2020
With the growing momentum around Open RAN (O-RAN) initiatives, performing dynamic Function Splitting (FS) in disaggregated and virtualized Radio Access Networks (vRANs), in an efficient way, is becoming highly important.
T. Pamuklu, M. Erol-Kantarci, Cem Ersoy
semanticscholar   +1 more source

EXPERIMENTAL AND NUMERICAL INVESTIGATION ON MANEUVERING PERFORMANCE OF SMALL WATERPLANE AREA TWIN HULL

open access: yesBrodogradnja, 2021
Free running model tests and a system-based method are employed to evaluate maneuvering performance for a Small Waterplane Area Twin Hull (SWATH) ship in this paper.
Kun Dai, Yunbo Li
doaj   +1 more source

Small GTPase Ran and Ran-binding proteins

open access: yesbmc, 2012
Abstract Like many other small GTPases, Ran functions in eukaryotic cells as a molecular switch that cycles between GTP- and GDP-bound forms. Through the proper modulation of the GTP/GDP cycle, Ran functions with a number of Ran-binding proteins to control a broad array of fundamental cellular functions, including nucleocytoplasmic ...
Nagai Masahiro, Yoneda Yoshihiro
openaire   +3 more sources

Modelling the Wake Flow Behind a Model of Horizontal Axis Wind Turbine using RANS Approach: A Comparative Study [PDF]

open access: yesJournal of Engineering Research - Egypt, 2020
Steady CFD simulations, which is based on Reynolds Average Navier-Stokes (RANS) approach, were conducted for a model of Horizontal Axis Wind Turbine (HAWT) and compared with experimental data in order to assess the accuracy of these models in simulating ...
Abd Elnaby Kabeel   +3 more
doaj   +1 more source

Comparative evaluation of RANS eddy-viscosity turbulence models for calculating the silicon melt convection in crystal growth systems

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
In the paper, the results of RANS calculations of turbulent convection in silicon melt, obtained using several eddy-viscosity turbulence models, have been compared with previously published ILES eddy-resolving calculation data for similar conditions.
Borisov Dmitry, Kalaev Vladimir
doaj   +1 more source

Customized data-driven RANS closures for bi-fidelity LES-RANS optimization [PDF]

open access: yesJournal of Computational Physics, 2020
Multi-fidelity optimization methods promise a high-fidelity optimum at a cost only slightly greater than a low-fidelity optimization. This promise is seldom achieved in practice, due to the requirement that low- and high-fidelity models correlate well ...
Yu Zhang   +5 more
semanticscholar   +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

Revisiting the Reynolds-averaged Navier–Stokes equations

open access: yesOpen Physics, 2022
This study revisits the Reynolds-averaged Navier–Stokes (RANS) equations and finds that the existing literature is erroneous regarding the primary unknowns and the number of independent unknowns in the RANS. The literature claims that the Reynolds stress
Sun Bohua
doaj   +1 more source

A Short Review on RANS Turbulence Models

open access: yes, 2020
Article history: Received 23 September 2020 Received in revised form 21 November 2020 Accepted 25 November 2020 Available online 30 November 2020 Reynolds-Averaged Navier-Stokes (RANS) are such model equations and are used to simulate numerous fluid flow
N. A. C. Sidik   +4 more
semanticscholar   +1 more source

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