Results 71 to 80 of about 21,976 (201)

Thermal Lattice Boltzmann Simulation of Entropy Generation within a Square Enclosure for Sensible and Latent Heat Transfers

Applied Sciences, 2015
This paper deals with the numerical simulation of heat transfer and entropy generation in a 2D square enclosure for convective melting. A thermal lattice Boltzmann method (TLBM) is used to handle the study, which has been conducted for Prandtl numbers ...
Alissar Yehya, Hassane Naji
doaj   +1 more source

The Combined Effects of Variable Viscosity and Thermal Conductivity of An Unsteady Casson Fluid Flow Along a Vertical Porous Channel With Convective Cooling Walls, Using the Bivariate Spectral Local Linearization Method

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo, Precious Sibanda, S. P. Goqo   +2 more
wiley   +1 more source

Contribution of entropy analysis on three-dimensional Prandtl model under Hall and ion slip effects with generalized mass and heat fluxes via OHAM

Propulsion and Power Research
The major concern of proffered study based on the inquisitive analysis of entropy approach based on 3-D Prandtl fluid influenced by modified advanced heat conduction along with mass diffusion models.
Sana Akbar, Muhammad Sohail, Syed Tehseen Abbas, Abha Singh   +3 more
doaj   +1 more source

Elastic–ideally plastic beams and Prandtl–Ishlinskii hysteresis operators

, 2007
The one-dimensional equation for transversal vibrations of an elastoplastic beam is derived from a general three-dimensional system with a single-yield tensorial von Mises plasticity model.
Sprekels, Jürgen, Krejčí, Pavel
core   +1 more source

Scale dependence of the marine atmospheric boundary‐layer response to ocean surface‐temperature variability in the EUREC4$$ {\mathrm{EUREC}}^4 $$A region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
With a minimal physics model and a high‐resolution fully 3D simulation, we demonstrate that the marine atmospheric boundary layer (MABL) response to sea‐surface temperature (SST) variability displays a dependence on the horizontal scales of motion.
Alessandro Storer, Matteo Borgnino, Claudia Pasquero, Agostino Niyonkuru Meroni   +3 more
wiley   +1 more source

A laboratory-scale experiment and a numerical simulation of unusual spiral plumes in a High-Prandtl-number fluid, links supplementary material

, 2014
We experimentally and numerically investigated the generation of plumes from a local heat source (LHS) and studied the interaction of these plumes with cellular convective motion (CCM) in a rectangular cavity filled with silicon oil at a Prandtl number ...
Anatoly N Poludnitsin (8009489), Bezprozvannikh, Vladimir A, Vladimir A Bezprozvannikh (8009486), Poludnitsin, Anatoly N, Albert N Sharifulin (8009483), Sharifulin, Albert N   +5 more
core   +1 more source

Theoretical Assessment of the Sodium Pool Fire's Burning Rate in an Open Environment

Safety Science and Technology, EarlyView.
An evaporation‐based model is developed for sodium pool fires. Experiments demonstrate that the burning rate increases with pool diameter and approaches a quasi‐saturated limit (∼0.013 kg m−2 s−1) governed by oxidation product conversion. ABSTRACT The burning rate of sodium pool fires is a critical parameter for assessing fire development and ...
Gao Han, Li Jinmei, Li Qiang, Zhu Wanlin, Qi Jialin   +4 more
wiley   +1 more source

Numerical Study of Convective Flow of Casson Fluid Through an Infinite Vertical Plate with Induced Magnetic Field

East European Journal of Physics
The present objective is to numerically analyze the induced magnetic field (IMF) effect of an unsteady MHD flow of Casson fluid through two infinite vertical plates. The effect of radiative heat has been scrutinized. Governing non-dimensional PDEs of the
Hiren Deka, Parismita Phukan
doaj   +1 more source

Prandtl number and thermoacoustic refrigerators

, 2002
From kinetic gas theory, it is known that the Prandtl number for hard-sphere monatomic gases is 2/3. Lower values can e realized using gas mixtures of heavy and light monatomic gases. Prandtl numbers varying between 0.2 and 0.67 are obtained by using gas
Waele, de, A.T.A.M., Zeegers, J.C.H., M. E. H. Tijani, J. C. H. Zeegers, Tijani, M.E.H., Tijani, MEH Hassan, A. T. A. M. de Waele, Zeegers, JCH Jos, Waele, ATAM Fons de   +8 more
core   +1 more source

Some remarks on Prandtl system [PDF]

, 2008
summary:The purpose of this paper is to correct some drawbacks in the proof of the well-known Boundary Layer Theory in Oleinik’s book. The Prandtl system for a nonstationary layer arising in an axially symmetric incopressible flow past a solid body is ...
Zhan, Huashui, Zhao, Junning, Krejčí, Pavel   +2 more
core   +1 more source