Results 11 to 20 of about 7,714 (269)

The rate of information transfer as a measure of ocean–atmosphere interactions [PDF]

open access: yesEarth System Dynamics, 2023
Exchanges of mass, momentum and energy between the ocean and atmosphere are of large importance in regulating the climate system. Here, we apply for the first time a relatively novel approach, the rate of information transfer, to quantify interactions ...
D. Docquier, S. Vannitsem, A. Bellucci
doaj   +1 more source

MICROSCALES OF TURBULENCE AND HEAT TRANSFER CORRELATIONS [PDF]

open access: yesAnnual Review of Heat Transfer, 1986
Abstract The small-scale structure of forced, turbulent flows developed after Taylor and Kolmogorov is extended to that of buoyancy-driven flows. A thermal microscale η θ ∽ 1+Pr Pr 1 4 Vɑ 2 P B 1 4 is proposed. Here Pr = v a denotes the Prandtl number and ℘B the production of buoyant, turbulent energy. Three
openaire   +3 more sources

Numerical Study of Entropy Generation due to Coupled Laminar and Turbulent Mixed Convection and Thermal Radiation in an Enclosure Filled with a Semitransparent Medium

open access: yesThe Scientific World Journal, 2014
The effect of radiation on laminar and turbulent mixed convection heat transfer of a semitransparent medium in a square enclosure was studied numerically using the Finite Volume Method.
M. Goodarzi   +7 more
doaj   +1 more source

Heat Transfer Enhancement of TiO2/Water Nanofluid at Laminar and Turbulent Flows: A Numerical Approach for Evaluating the Effect of Nanoparticle Loadings

open access: yesEnergies, 2018
Titania-based nanofluid flowing inside a circular tube under the boundary condition of a horizontal uniformly heated wall was investigated numerically for both laminar and turbulent flows.
Budi Kristiawan   +4 more
doaj   +1 more source

Heat Transfer in Turbulent Shear Flow [PDF]

open access: yesJournal of the Aeronautical Sciences, 1956
A new and relatively simple description is proposed for the velocity profile in turbulent flow close to a smooth wall. Heat transfer coefficients are calculated from the description and are shown to agree better with experiment than other theories. The analysis is extended to transport processes in liquids where the viscosity has a large variation ...
openaire   +2 more sources

Comparison of numerical results of turbulence models for the problem of heat transfer in turbulent molasses [PDF]

open access: yesE3S Web of Conferences
The study introduces Malikov's two-fluid methodology along with the RSM turbulence model for simulating turbulent heat transfer phenomena. It elucidates that temperature fluctuations within turbulent flows arise from temperature differentials between the
Madaliev Murodil   +6 more
doaj   +1 more source

Self-sustained biphasic catalytic particle turbulence

open access: yesNature Communications, 2019
Turbulent systems are particularly suitable for heat transport. Here the authors add active particles to a turbulent system, and the coupling of turbulent convection and the collective dynamics of active particles leads to a 500% enhancement in heat ...
Ziqi Wang, Varghese Mathai, Chao Sun
doaj   +1 more source

Numerical Study on Laminar-Turbulent Transition Flow in Rectangular Channels of a Nuclear Reactor

open access: yesFrontiers in Energy Research, 2020
Laminar-turbulent transition flow can be observed in thermal engineering applications, but the flow resistance and heat transfer characteristics are not fully understood.
Zhenying Wang   +6 more
doaj   +1 more source

Control of Turbulent Channel Flow over a Backward-Facing Step by Suction

open access: yesJournal of Fluid Science and Technology, 2009
The Turbulent channel flow over a backward-facing step was investigated experimentally by using suction through a slit at the bottom corner of the step.
Masatoshi SANO   +2 more
doaj   +1 more source

Heat Transfer Characteristics of Turbulent Flow in Double-90°-Bend Pipes

open access: yesEnergies, 2023
This study evaluates the heat dissipation and Nusselt number for an S-shaped double-bend pipe, for which an experimental evaluation is lacking. In terms of the velocity field, the mean velocity and turbulent kinetic energy were measured through particle ...
Yuki Kato   +8 more
doaj   +1 more source

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