Results 1 to 10 of about 8,613,689 (220)

Numerical Study of Laminar Forced Convection of Nanofluid in a New Microchannel Heat Sink

open access: yesJournal of Mechanical Engineering, 2021
The heat transfer and pressure drop in a microchannel heat sink with 02 mixing chambers with inclined walls were numerically studied. The transport equations have been resolved by the finite volume method using ANSYS Fluent software. The operating fluids
Bourhane Bouhabel, Yassine Kabar
doaj   +1 more source

Radial boundary layer structure and Nusselt number in Rayleigh–Bénard convection [PDF]

open access: yesJournal of Fluid Mechanics, 2010
Results from direct numerical simulation (DNS) for three-dimensional Rayleigh–Bénard convection in a cylindrical cell of aspect ratio 1/2 and Prandtl number Pr=0.7 are presented. They span five decades of Rayleigh number Ra from 2 × 106 to 2 × 1011. The results are in good agreement with the experimental data of Niemela et al. (Nature, vol.
Stevens, R. J. A. M   +2 more
openaire   +6 more sources

Analysis of the Nusselt number in pulsating pipe flow

open access: yesInternational Journal of Heat and Mass Transfer, 1997
기계공학전공
GUO, ZHIXIONG   +1 more
openaire   +2 more sources

Modeling mixing convection analysis of discrete partially filled porous channel for optimum design

open access: yesAlexandria Engineering Journal, 2015
Mixing convection flow inside a convergent horizontal channel partially filled with porous material and a clear channel are investigated numerically in the present study.
Mohamed G. Ghorab
doaj   +1 more source

Numerical study of nanofluid natural convection in a square cavity with a hot obstacle using lattice Boltzmann method

open access: yesAlexandria Engineering Journal, 2018
In the present work, for the first time, laminar natural convection of water-TiO2 nanofluid around a hot obstacle in a square cavity is simulated by Lattice Boltzmann Method (LBM).
A.R. Rahmati, A.A. Tahery
doaj   +1 more source

Natural convection in a square Cavity: Effects of Rayleigh and Prandtl numbers on heat transfer and flow patterns

open access: yesCase Studies in Thermal Engineering
Natural convection within enclosures plays a crucial role in heat transfer across various thermal systems. This study presents a validated numerical benchmark for buoyancy-driven flow in a square cavity with differential heating, focusing solely on the ...
Saleh A. Bawazeer, Mohammad S. Alsoufi
doaj   +1 more source

Effects of Slip Boundaries on Mixed Convection of Al2O3-water Nanofluid in Microcavity [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2015
Due to the importance of the slip effect on modeling of microchannel and microcavity, numerical investigations have been introduced in this work for studying the mixed convection of Al2O3-water nanofluid in a square microcavity.
A. R. Rahmati   +3 more
doaj  

Nusselt number calculation methods based on CFD simulations applied to forced convection over cylinders

open access: yesResults in Engineering
Industrial thermal machines and electronic equipment require heat exchangers to maintain optimal operating temperatures. The design of heat exchangers involves modeling convective heat transfer in a manner consistent with Newton’s law of cooling and ...
Fábio Alfaia da Cunha   +1 more
doaj   +1 more source

Nusselt number and friction factor in zig-zag microchannels subjected to constant heat flux

open access: yesInternational Journal of Thermofluids
This study quantifies the heat transfer coefficient, pressure drop, Nusselt number and friction factor associated with flow of water in zig-zag microchannels, with square cross-section and sharp edges, when subjected to constant heat flux boundary ...
Bobby Mathew   +5 more
doaj   +1 more source

The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows

open access: yesAl-Khawarizmi Engineering Journal, 2008
In this numerical study a detailed evaluation of the heat transfer characteristics and flow structure in a laminar and turbulent flow through a rectangular channel containing built-in of different type vortex generator has been a accomplished in a range ...
Laith J.H   +2 more
doaj   +2 more sources

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