Results 1 to 10 of about 190,709 (268)

On hydromagnetic thermosolutal convection coupled with cross-diffusion in completely confined fluids [PDF]

open access: yesTheoretical and Applied Mechanics, 2011
The instability of thermosolutal convection coupled with crossdiffusion of an electrically conducting fluid completely confined in an arbitrary region bounded by rigid wall in the presences of a uniform magnetic field applied in an arbitrary direction
Mohan Hari, Kumar Pardeep
doaj   +1 more source

Lewis number effects in distributed flames [PDF]

open access: yesProceedings of the Combustion Institute, 2011
Abstract Recent computational studies have simulated a mode of distributed premixed combustion where turbulent mixing plays a significant role in the transport of mass and heat near the reaction zone. Under these conditions, molecular transport processes play a correspondingly smaller role.
Aspden, Andrew, Day, M., Bell, J.
openaire   +3 more sources

Effect of unsteady relative thermal and concentration boundary layer thickness on mixed convection in a partially heated contaminated enclosure

open access: yesSouth African Journal of Chemical Engineering, 2022
Double diffusive flow under mixed convection has become a significant area of research. This study aims to evaluate the Lewis number effect in such a double-diffusive problem in a roof-based air-ventilated system.
C.N. Mithun   +4 more
doaj   +1 more source

Numerical modelling of double-diffusive natural convection within an arc shaped enclosure filled with a porous medium [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2014
Numerical study of double-diffusive natural convective heat transfer in a curved cavity filledwith a porous medium has been carried out in the current study. Polar system has beenselected as coordinate system.
Ariyan Zare Ghadi   +2 more
doaj   +1 more source

Influences of stretch and curvature on the temperature of stretched cylindrical diffusion flames

open access: yesJournal of Thermal Science and Technology, 2016
The structure of a counterflow-type cylindrical diffusion flame was studied experimentally to determine the effect of stretch and curvature. The cylindrical flame used in this study had a concave curvature with respect to the fuel stream.
Yosuke SUENAGA   +2 more
doaj   +1 more source

Effects of Lewis Number on Temperatures of Spherical Diffusion Flames [PDF]

open access: yes45th AIAA Aerospace Sciences Meeting and Exhibit, 2007
Spherical diffusion flames supported on a porous sphere were studied numerically and experimentally. Experiments were performed in 2.2 s and 5.2 s microgravity facilities. Numerical results were obtained from a Chemkin-based program. The program simulates flow from a porous sphere into a quiescent environment, yields both steady-state and transient ...
K. Santa   +6 more
openaire   +1 more source

Convective transport in a porous medium layer saturated with a Maxwell nanofluid

open access: yesJournal of King Saud University: Engineering Sciences, 2016
A linear and weakly non-linear stability analys is has been carried out to study the onset of convection in a horizontal layer of a porous medium saturated with a Maxwell nanofluid.
J.C. Umavathi, Monica B. Mohite
doaj   +1 more source

A modified variable physical properties model, for analyzing nanofluids flow and heat transfer over nonlinearly stretching sheet [PDF]

open access: yesTransport Phenomena in Nano and Micro Scales, 2017
In this paper, the problem of laminar nanofluid flow which results from the nonlinear stretching of a flat sheet isĀ investigated numerically. In this paper, a modified variable physical properties model for analyzing nanofluids flow and heat transfer is ...
Pooria Akbarzadeh
doaj   +1 more source

Quantification of the Local Heat Release Rate During Flame-Vortex Interactions at Different Lewis Numbers and Equivalence Ratios

open access: yesEurasian Chemico-Technological Journal, 2014
The present work aims at the detailed understanding of the local processes in premixed combustion of hydrogen, methane and propane flames at unsteady conditions.
J. A. Denev, I. Naydenova, H. Bockhorn
doaj   +1 more source

Lewis Number Effects on Turbulent Premixed Flame Structure [PDF]

open access: yesCombustion Science and Technology, 1993
ABSTRACT The influence of the Lewis number on turbulent flame front geometry is investigated in a premixed turbulent stagnation point flame. A laser tomography technique is used to obtain the flame shape, a fractal analysis of the multiscale flame edges is performed and the distribution of local flame front curvature is determined. Lean H2/Air and C3H8/
Goix, P. J., Shepherd, I. G.
openaire   +2 more sources

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