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TVT, 2015, Volume 53, Issue 3, Pages 403–411 (Mi tvt197)  

This article is cited in 1 scientific paper (total in 1 paper)

Heat and Mass Transfer and Physical Gasdynamics

The Effect of density pulsations in the field of a buoyancy force on heat transfer and turbulent fluid flow in a vertical pipe at supercritical pressures

E. P. Valueva

National Research University "Moscow Power Engineering Institute"

Abstract: Regimes of deteriorated (with peaks of the wall temperature) heat transfer are calculated for a turbulent buoyant flow and down flow of carbon dioxide under supercritical pressure in a vertical pipe, as well as in a horizontal round pipe. The calculations involve a system of motion, continuity, and energy equations written in the narrow channel approximation. These equations are solved by the finite difference method. A model of turbulent stress and turbulent thermal flow takes into account the influence of density pulsations in the field of the buoyancy force and in the presence of thermal acceleration of the flow. Regimes with a small influence of the buoyancy force are considered. The calculation results for the variation in the wall temperature and resistance coefficients along the pipe agree well with the experimental data. An explanation for the appearance of a peak in the wall temperature distribution along the pipe in the region where the fluid temperature is close to the pseudocritical temperature is presented.

DOI: https://doi.org/10.7868/S0040364415030187

Full text: PDF file (451 kB)
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English version:
High Temperature, 2015, 53:3, 387–395

Bibliographic databases:

Document Type: Article
UDC: 532:536.24
Received: 12.03.2014
Accepted:05.11.2014

Citation: E. P. Valueva, “The Effect of density pulsations in the field of a buoyancy force on heat transfer and turbulent fluid flow in a vertical pipe at supercritical pressures”, TVT, 53:3 (2015), 403–411; High Temperature, 53:3 (2015), 387–395

Citation in format AMSBIB
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\by E.~P.~Valueva
\paper The Effect of density pulsations in the field of a buoyancy force on heat transfer and turbulent fluid flow in a vertical pipe at supercritical pressures
\jour TVT
\yr 2015
\vol 53
\issue 3
\pages 403--411
\mathnet{http://mi.mathnet.ru/tvt197}
\crossref{https://doi.org/10.7868/S0040364415030187}
\elib{http://elibrary.ru/item.asp?id=23335370}
\transl
\jour High Temperature
\yr 2015
\vol 53
\issue 3
\pages 387--395
\crossref{https://doi.org/10.1134/S0018151X15030190}
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\elib{http://elibrary.ru/item.asp?id=23989049}
\scopus{http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-84935916307}


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    Citing articles on Google Scholar: Russian citations, English citations
    Related articles on Google Scholar: Russian articles, English articles

    This publication is cited in the following articles:
    1. V. A. Kurganov, I. V. Maslakova, “Normal and deteriorated heat transfer upon heating of turbulent flows of heat carriers with variable physical properties in tubes”, High Temperature, 54:4 (2016), 577–598  mathnet  crossref  crossref  isi  elib
  • Teplofizika vysokikh temperatur Teplofizika vysokikh temperatur
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