Results 21 to 30 of about 4,375,834 (381)

Natural convection in liquids [PDF]

open access: yesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1939
Lorenz (1881) gave a solution to the problem of natural convection set up near a heated vertical plate, in which he assumed that the surfaces of equal fluid velocity and equal fluid temperature are parallel to the plate. Experiments show, however, that this is not the case.
openaire   +3 more sources

Biomass gasification for syngas and biochar co-production: Energy application and economic evaluation [PDF]

open access: yes, 2018
Syngas and biochar are two main products from biomass gasification. To facilitate the optimization of the energy efficiency and economic viability of gasification systems, a comprehensive fixed-bed gasification model has been developed to predict the ...
Ge, TianshU   +3 more
core   +1 more source

Helium Cryostat for Experimental Study of Natural Turbulent Convection [PDF]

open access: yes, 2010
V disertační práci je popsán heliový kryostat s experimentální válcovou konvekční celou pro studium proudění při přirozené konvekci za velmi vysokých Rayleigho čísel Ra (až do řádu 10^15) a Nusseltových čísel Nu (až do řádu 10^4).
Urban, Pavel
core   +1 more source

Radiative Heat Transfer Analysis in a Turbulent Natural Convection Obtained from Direct Numerical Simulation

open access: yesJournal of Thermal Science and Technology, 2011
Thermal radiation in a turbulent natural convection plays an important role in a wide area of engineering and nature. The purposes of this study are to investigate the effects of turbulent fluctuation on radiative heat transfer, and to evaluate radiative
Atsushi SAKURAI   +3 more
doaj   +1 more source

Destruction of the family of steady states in the planar problem of Darcy convection [PDF]

open access: yes, 2008
The natural convection of incompressible fluid in a porous medium causes for some boundary conditions a strong non-uniqueness in the form of a continuous family of steady states.
Arakawa   +17 more
core   +2 more sources

A “poor man’s” approach to topology optimization of natural convection problems [PDF]

open access: yesStructural And Multidisciplinary Optimization, 2018
Topology optimization of natural convection problems is computationally expensive, due to the large number of degrees of freedom (DOFs) in the model and its two-way coupled nature.
Janus Asmussen   +3 more
semanticscholar   +1 more source

Revisiting the natural convection effects at ultra-low redox concentration solutions: The influence of viscosity and diameter of wire electrode

open access: yesElectrochemistry Communications
Natural convection could arise even at ultra-low redox concentration solutions (1–10 mM). Models such as convection–diffusion layer model and spontaneous convection model have been established to describe this phenomenon.
Zichen Zhang   +6 more
doaj   +1 more source

Natural convection reactor [PDF]

open access: yes, 1956
A previous report described the conceptual design of a plutonium producing reactor that may be characterized as follows: Power output (2000 MW); cooling - (natural convection of light water through the reactor, up through a draft tube to an evaporative cooling pond, then back to the reactor, and fuel (400 to 500 tons of uranium enriched to 1.2% U-235).
Babcock, D. F.   +3 more
openaire   +3 more sources

Double MRT thermal lattice Boltzmann method for simulating natural convection of low Prandtl number fluids [PDF]

open access: yes, 2015
Purpose: The purposes of this paper are testing an efficiency algorithm based on LBM and using it to analyze two-dimensional natural convection with low Prandtl number.
Li, Zheng, Yang, Mo, Zhang, Yuwen
core   +2 more sources

Study on interaction mechanism between natural convection and forced convection during storage and temperature rise of waxy crude oil tank

open access: yesEngineering Applications of Computational Fluid Mechanics
As the primary facility for crude oil storage, storage tanks play a critical role in achieving high operational efficiency and low energy consumption through comprehensive understanding of complex thermal convection mechanisms.
Wei Sun   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy