Results 11 to 20 of about 386,308 (321)

Impact of subsurface convective flows on the formation of sunspot magnetic field and energy build-up [PDF]

open access: yes, 2022
Strong solar flares occur in $\delta $-spots characterized by the opposite-polarity magnetic fluxes in a single penumbra. Sunspot formation via flux emergence from the convection zone to the photosphere can be strongly affected by convective turbulent flows. It has not yet been shown how crucial convective flows are for the formation of $\delta$-spots.
arxiv   +1 more source

Heat transfer of fluid with a moving heat source

open access: yesVietnam Journal of Mechanics, 1994
Investigation of free, convection in fluid heated by front combustion synthesis is presented. Characteristic parameter for problem is received. Three stages of development of free convection are distinguished.
Vu Duy Quang
doaj   +1 more source

Laminar mixed convection of Cu-water nano-fluid in two- sided lid-driven enclosures [PDF]

open access: yesJournal of Nanostructures, 2011
The fluid flow and heat transfer in lid-driven enclosures filled with Cu-water nanofluid is numerically investigated. The moving vertical walls of the enclosure  are maintained in a constant temperature, while the horizontal walls are insulated.
N. Hajialigol   +3 more
doaj   +1 more source

EXPERIMENTAL STUDY OF HEAT TRANSFER OF A SINGLE-ROW BUNDLE OF FINNED TUBES IN MIXED CONVECTION OF AIR

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2017
The technique and results of experimental study of heat transfer of a single bundle consisting of bimetallic tubes with helically knurled edges, in natural and mixed convection of air are presented. Mixed convection, i.e.
A. B. Sukhotskii, G. S. Sidorik
doaj   +1 more source

Heat exchange processes in volume of fire-tube boiler with non-water heat transfer fluid [PDF]

open access: yesОмский научный вестник, 2018
The article proposes a solution to problems associated with hightemperature heating. The main advantages of high-temperature heat transfer fluid are given. A description is given of the design of a fire-tube boiler and its main components (furnaces and
A. G. Mikhailov   +2 more
doaj   +1 more source

Free convection on a refrigerator’s condenser

open access: yesEPJ Web of Conferences, 2014
The paper presents the measurement of heat transfer coefficient for the refrigerator’s condenser in free convection regime. The water was pumped through the steel coils of heat exchanger with a constant flow rate and its temperature was kept at a ...
Orzechowski T., Stokowiec K.
doaj   +1 more source

The onset of magnetic nanofluid convection because of selective absorption of radiation

open access: yesJournal of Mechanical Engineering and Sciences, 2021
This article reports a linear stability analysis of the onset of convection stimulated by selective absorption of radiation in a horizontal layer of magnetic nanofluid (MNF) under the impact of an external magnetic field.
Amit Mahajan, Mahesh Kumar Sharma
doaj   +1 more source

Formation of Large-Scale Semi-Organized Structures in Turbulent Convection [PDF]

open access: yesPhys.Rev. E66 (2002) 066305, 2002
A new mean-field theory of turbulent convection is developed. This theory predicts the convective wind instability in a shear-free turbulent convection which causes formation of large-scale semi-organized fluid motions in the form of cells or rolls. Spatial characteristics of these motions, such as the minimum size of the growing perturbations and the ...
arxiv   +1 more source

Convection in binary mixture with free surface

open access: yesVietnam Journal of Mechanics, 1995
None
Ngo Huy Can, Tran Thu Ha
doaj   +1 more source

Dielectrophoretic force-driven convection in annular geometry under Earth's gravity

open access: yes, 2020
Context: A radial temperature gradient together with an inhomogeneous radial electric field gradient is applied to a dielectric fluid confined in a vertical cylindrical annulus inducing thermal electro-hydrodynamic convection.
Baumann, Martin   +7 more
core   +1 more source

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