Results 181 to 190 of about 3,296 (231)

CFD-PBM modelling for predicting the size and distribution of silica nanoparticles synthesized in an ultrasound-assisted swirling vortex flow reactor. [PDF]

Ultrason Sonochem
Liu L, Shi W, Li B, Wang G, Guo Y, Yang X, Zhou W.   +6 more
europepmc   +1 more source

Modeling Pharmaceutical Batch Cooling Crystallization Processes Using Computational Fluid Dynamics Coupled with a One-Dimensional Population Balance Model. [PDF]

Cryst Growth Des
M Camacho Corzo D, Rosette JAF, Rana AS, Ma CY, Roberts KJ, Mahmud T.   +5 more
europepmc   +1 more source

Local turbulent Prandtl Number Model

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Turbulent Prandtl Number—Where Are We?

Journal of Heat Transfer, 1994
The objective of this paper is to examine critically the presently available experimental data on Turbulent Prandtl Number for the two-dimensional turbulent boundry layer, and for fully developed flow in a circular tube or a flat duct, and attempt to draw some conclusions as to where matters presently stand.
exaly   +2 more sources

A Model for Eddy Conductivity and Turbulent Prandtl Number

Journal of Heat Transfer, 1973
This paper presents a model for eddy conductivity and turbulent Prandtl number based on the considerations of a Stokes-type flow. The expressions obtained by the model provide continuous velocity and temperature distributions for turbulent flows and are applicable to flows with pressure gradients, mass transfer, and heat transfer. Close to the wall the
T. Cebeci
openaire   +2 more sources

Direct numerical simulation of turbulent forced convection in a wavy channel at low and order one Prandtl number

International Journal of Thermal Sciences, 2014
Turbulent forced convection in a channel with one planar wall and one wall of sinusoidal shape is investigated by Direct Numerical Simulation. The flow is fully developed and the Reynolds number based on the mean bulk velocity and the average hydraulic ...
E Stalio
exaly   +2 more sources

Direct numerical simulation of turbulent heat transfer in pipe flows: Effect of Prandtl number

International Journal of Heat and Fluid Flow, 2007
International audienceDirect numerical simulations of heat transfer in a fully developed turbulent pipe flow with isoflux condition imposed at the wall are performed for a Reynolds number based on pipe radius Re = 5500. Main emphasis is placed on Prandtl
Ould-Rouiss, Meryem, Lauriat, Guy, Redjem Saad, L.   +2 more
exaly   +2 more sources

Diffusion in anisotropic fully developed turbulence: Turbulent Prandtl number

Physical Review E, 2016
Using the field theoretic renormalization group technique in the leading order of approximation of a perturbation theory the influence of the uniaxial small-scale anisotropy on the turbulent Prandtl number in the framework of the model of a passively advected scalar field by the turbulent velocity field driven by the Navier-Stokes equation is ...
E, Jurčišinová, M, Jurčišin
openaire   +2 more sources

Prandtl number effects in convective turbulence

Journal of Fluid Mechanics, 1999
The effect of Prandtl number on the dynamics of a convective turbulent flow is studied by numerical experiments. In particular, three series of experiments have been performed; in two of them the Rayleigh number spanned about two decades while the Prandtl number was set equal to 0.022 (mercury) and 0.7 (air).
Verzicco, R., Camussi, R.
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On the Influence of the Molecular Prandtl Number on the Turbulent Prandtl Number

1979
Much more work has been done on the problem of turbulent transfer of momentum in a shear flow than on the problem of turbulent heat transfer. One of the reasons is obviously the fact, that from an experimental point of view informations about velocity-velocity correlations are easier to obtain compared with temperature-velocity correlations.
M. Jischa, H. B. Rieke
openaire   +1 more source