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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
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.v43.i4.10
pages 285-295

VORTEX GENERATION IN FLOWS PAST DIFFERENTIALLY DIMPLED SURFACES

Igor A. Popov
Tupolev Kazan National Research Technical University – Kazan Aviation Institute, 10 K. Marx Str., Kazan, Tatarstan, 420015, Russia
A. V. Shchelchkov
A. N. Tupolev Kazan National Research Technical University, 10 K. Marx Str., Kazan, 420111, Russian Federation
D. V. Ryzhkov
A. N. Tupolev Kazan State Technical University, Kazan, 420111, Russia
R. A. Ul'yanova
A. N. Tupolev Kazan State Technical University, Kazan, 420111, Russia

Краткое описание

The results of visualization of vortical water and air flows past surfaces with various dimples (trench-like, semispherical, and cylindrical) for heat transfer intensification in laminar, transient, and turbulent regimes are presented. Flows past single dimples and their systems were investigated. Various methods of visualization were used such as smoke, the carbon oil, and coloring admixtures. Flow pictures and flow pattern diagrams on the surfaces with various dimples are given. Comparative results of infra-red investigations of convective heat transfer on surfaces with such intensifiers are presented. The mechanisms underlying heat transfer intensification on such surfaces are defined. Optimum design parameters of such heat transfer intensifiers are recommended.


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