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Teplofizika vysokikh temperatur, 2019, Volume 57, Issue 6, Pages 893–897
DOI: https://doi.org/10.1134/S0040364419040094 (Mi tvt11138) 		 
This article is cited in 2 scientific papers (total in 2 papers)

Heat and Mass Transfer and Physical Gasdynamics

Heat transfer enhancement in a microtube with an in-line package of spherical and inclined oval-trench dimples during transformer-oil pumping

S. A. Isaeva, A. G. Sudakova, A. D. Chornyb, Yu. V. Zhukovab, A. G. Usachovc

a Saint-Petersburg State University of Civil Aviation
b Institute for Heat and Mass Transfer named after A. V. Lykov, Belarus Academy of Sciences
c Filial of Central Aerohydrodynamic Institute
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DOI: https://doi.org/10.1134/S0040364419040094
Abstract: The vortex-induced intensification of the laminar $($at $\rm Re = 308)$ flow of transformer oil and heat transfer in a microtube with an in-line package of dimples with a depth of $0.26$ of the tube diameter is calculated based on the Navier–Stokes equations and the energy equation. The heat-transfer increased by nearly $20$ times for eight inclined oval-trench dimples spaced around the circumference and by $13$ times for spherical dimples equal in area in comparison with that for a smooth tube; moreover, the relative hydraulic losses grow by approximately $30$ and $60\%$, respectively.
Funding agency Grant number
Russian Foundation for Basic Research 18-58-00010
18-01-00210
Belarusian Republican Foundation for Fundamental Research Ф18Р-035
This work was supported by the Russian Foundation for Basic Research, projects no. 18-58-00010 -- analysis and no. 18-01-00210 -- methodology, and by the Belorussian Republican Foundation for Basic Research, project no. F18R-035.
Received: 20.11.2018
Revised: 28.01.2019
Accepted: 27.03.2019
English version:
High Temperature, 2019, Volume 57, Issue 6, Pages 885–888
DOI: https://doi.org/10.1134/S0018151X19040096
Bibliographic databases:
Document Type: Article
UDC: 532.517:2
Language: Russian
Citation: S. A. Isaev, A. G. Sudakov, A. D. Chorny, Yu. V. Zhukova, A. G. Usachov, “Heat transfer enhancement in a microtube with an in-line package of spherical and inclined oval-trench dimples during transformer-oil pumping”, TVT, 57:6 (2019), 893–897; High Temperature, 57:6 (2019), 885–888
Citation in format AMSBIB
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\paper Heat transfer enhancement in a microtube with an in-line package of spherical and inclined oval-trench dimples during transformer-oil pumping
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\yr 2019
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\pages 893--897
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\crossref{https://doi.org/10.1134/S0040364419040094}
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    • This publication is cited in the following 2 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    		Teplofizika vysokikh temperatur Teplofizika vysokikh temperatur
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