Results 31 to 40 of about 50,883 (231)
, 2011 Rigorous upper limits on the vertical heat transport in two dimensional Rayleigh-Benard convection between stress-free isothermal boundaries are derived from the Boussinesq approximation of the Navier-Stokes equations. The Nusselt number Nu is bounded in
Charles R. Doering +2 more
core +1 more source
Natural convection in square enclosures differentially heated at sides using alumina-water nanofluids with temperature-dependent physical properties [PDF]
, 2015 Laminar natural convection of Al2O3 + H2O nanofluids inside square cavities differentially heated at sides is studied numerically. A computational code based on the SIMPLE-C algorithm is used for the solution of the system of the mass, momentum and ...
CIANFRINI, MARTA +2 more
core +1 more source
International Journal of Thermofluids, 2023 Laminar, steady-state, natural convection of Bingham fluids in trapezoidal enclosures with a heated bottom wall, cooled inclined sidewalls and an adiabatic top wall has been studied based on numerical simulations for a range of values of nominal Bingham ...
S. Malkeson +2 more
doaj +1 more source
Resolving the fine-scale structure in turbulent Rayleigh-Benard convection [PDF]
, 2013 We present high-resolution direct numerical simulation studies of turbulent Rayleigh-Benard convection in a closed cylindrical cell with an aspect ratio of one. The focus of our analysis is on the finest scales of convective turbulence, in particular the
Emran, Mohammad S. +2 more
core +2 more sources
Nusselt Number Correlation for Vertical Tubes with Inverted Triangular Fins under Natural Convection
Energies, 2017 Vertical tubes with inverted triangular fins under natural convection are investigated experimentally. The thermal resistances of tubes with inverted triangular fins are measured for various fin numbers, fin heights, and heat inputs.
Byeong Dong Kang +2 more
doaj +1 more source
Effects of viscous dissipation and boundary conditions on forced convection in a channel occupied by a saturated porous medium [PDF]
, 2007 Forced convection with viscous dissipation in a parallel plate channel filled by a saturated porous medium is investigated numerically. Three different viscous dissipation models are examined.
A. Bejan +35 more
core +2 more sources
Micromachines, 2019 Laminar convective heat transfer of elliptical minichannels is investigated for hydrodynamically fully developed but thermal developing flow with no-slip condition.
Liangbin Su +4 more
doaj +1 more source
On the hydrodynamics and heat convection of an impinging external flow upon a cylinder with transpiration and embedded in a porous medium [PDF]
, 2017 This paper extends the existing studies of heat convection by an external flow impinging upon a flat porous insert to that on a circular cylinder inside a porous medium.
Alizadeh, Ahmed +3 more
core +2 more sources
Compliant Polymeric Sheet‐Based Heat Exchangers
Advanced Science, EarlyView.This work presents flexible, transparent, and deployable polymer heat exchangers that achieve a heat transfer capacity per cost up to 4x higher than the state of the art, surpassing both metal and other polymer counterparts. The tube‐on‐tube design enables efficient heat transfer without flow occlusion, while the lightweight, corrosion‐resistant, and ...
Richard J. Fontenot +5 more
wiley +1 more source
Numerical investigation of nanofluid flow and heat transfer over a backward-facing step
Engineering and Applied Science Research, 2020 In this research, the forced convection heat transfer of a nanofluid in a channel with a backward- facing step is studied by adopting the finite volume technique. The effect of nanoparticles is considered by employing the single-phase model.
Pedram Pournaderi, Milad Aram
doaj +1 more source