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Heat Transfer Research
Импакт фактор: 1.199 5-летний Импакт фактор: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 51, 2020 Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v37.i4.20
pages 295-305

Generalization of the Existing Collection of Experimental Information on Critical Heat Loads in Flow Twisting

Yury A. Kuzma-Kichta
Moscow Power Engineering Institute Moscow, Russia
Vasilii V. Glazkov
Moscow Power Engineering Institute (Technical University), Russia

Краткое описание

The data of eight works on critical heat loads for heat carrier streams twisted in a tube with the aid of a tape (272 experimental points in all) are presented. A comparison of the data on critical heat loads on stream twisting with corresponding data for smooth tubes at x ≤ 0 is made. The results of the comparison allow the following assumptions to be made: 1) for both smooth tubes and tubes with tape swirlers the action of the same factors is determining in heat transfer crisis; 2) for both smooth tubes and tubes with tape swirlers the dependence of the critical heat load on the length of a heated section seems to be valid; this dependence is very strong, approximately as ∼1/L. This result can be due to the weakening of turbulent fluctuations of the mass velocity in the flow core due to the appearance of a bubble layer near the heater surface.


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