“…The detected effect has an applied potential and is associated with the creation of effective tools for the intensification of heat and mass transfer. The systematic studies are carried out in [5]. Fig.…”
Section: Methods Detailsmentioning
confidence: 99%
“…Qualitative differences in the action of vibrations on a rotating non-isothermal fluid were found when the rotation frequency is close to the frequency of vibrations [5]. It is shown that when the frequencies coincide, the action of vibrations is reduced to the generation of a high-intensity static convection in the cavity reference frame.…”
“…The detected effect has an applied potential and is associated with the creation of effective tools for the intensification of heat and mass transfer. The systematic studies are carried out in [5]. Fig.…”
Section: Methods Detailsmentioning
confidence: 99%
“…Qualitative differences in the action of vibrations on a rotating non-isothermal fluid were found when the rotation frequency is close to the frequency of vibrations [5]. It is shown that when the frequencies coincide, the action of vibrations is reduced to the generation of a high-intensity static convection in the cavity reference frame.…”
“…A non-isothermal fluid in a rotating cavity was explored computationally and experimentally by Vjatkin et al (2019) [26]. A revolving horizontally mounted cylinder with isothermal boundaries exposed to translational vibrations perpendicular to the rotation axis was used to study heat-generating fluid convection.…”
Many strategies have been attempted for accomplishing the needed changes in the heat-transfer rate in closed cavities in recent years. Some strategies used include the addition of flexible or hard partitions to the cavities (to split them into various pieces), thickening the borders, providing fins to the cavities, or altering the forms or cavity angles. Each of these methods may be used to increase or decrease heat transmission. Many computational and experimental investigations of heat transport in various cavity shapes have been conducted. The majority of studies focused on improving the thermal efficiency of heat transmission in various cavity containers. This paper introduced a review of experimental, numerical, and analytical studies related to heat transfer analyses in different geometries, such as circular, cylindrical, hexagonal, and rectangular cavities. Results of the evaluated studies indicate that the fin design increased heat transmission and sped up the melting time of the PCM; the optimal wind incidence angle for the maximum loss of combined convective heat depends on the tilt angle of the cavity and wind speed. The Nusselt number graphs behave differently when decreasing the Richardson number. Comparatively, the natural heat transfer process dominates at Ri = 10, but lid motion is absent at Ri = 1. For a given Ri and Pr, the cavity without a block performed better than the cavity with a square or circular block. The heat transfer coefficient at the heating sources has been established as a performance indicator. Hot source fins improve heat transmission and reduce gallium melting time.
“…The goal of this research is to study experimentally and theoretically the effect of transversal vibrations on the average convection of a non-isothermal fluid in a rotating cavity [1], especially in the domain where the rotational frequency and vibration frequency approach each other. The research involves experimental studies of the convection of a heat-generating fluid in a rotating horizontal cylinder with isothermal boundaries subject to translational vibrations, perpendicular to the rotation axis [2], as well as thermal convection in an annulus with boundaries at different temperatures. In the absence of vibrations, at fast cavity rotation the fluid is in an equilibrium state in the centrifugal force field with the temperature maximum at the cavity axis.…”
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