danДоклады Национальной академии наук БеларусиDoklady of the National Academy of Sciences of Belarus1561-83232524-2431The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"10.29235/1561-8323-2018-62-6-756-762dan-577Research ArticleТЕХНИЧЕСКИЕ НАУКИTECHNICAL SCIENCESКонвективный теплообмен и аэродинамическое сопротивление двух расположенных бок о бок труб в узком канале при различных числах РейнольдсаConvective heat transfer and drag of two side-by-side tubes in the narrow channel at different Reynolds numberЖуковаЮ. В.ZhukovaYu. V.

канд. физ.-мат. наук, вед. науч. сотрудник

Ph. D. (Physics and Matematics), Leading researcher

julia_zhukova@rambler.ruТерехА. М.ТеrekhA. M.

канд. техн. наук, ст. науч. сотрудник

Ph. D. (Engineering), Senior researcher

teram1957@meta.uaРуденкоА. И.RudenkoA. I.

канд. техн. наук, доцент

Ph. B. (Engineеring), Associate professor

a_rudenko@ukr.netИнститут тепло- и массообмена им. А. В. Лыкова Национальной академии наук Беларуси, МинскA. V. Luikov Heat and Mass Transfer Institute of the Academy of Sciences of Belarus, MinskКиевский политехнический институт им. И. Сикорского, КиевIgor Sikorsky National Technical University of Ukraine “Kiev Polytechnic Institute”, Kiev201813012019626756762Copyright © Жукова Ю.В., Терех А.М., Руденко А.И., 20192019Жукова Ю.В., Терех А.М., Руденко А.И.Zhukova Y.V., Теrekh A.M., Rudenko A.I.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://doklady.belnauka.by/jour/article/view/577

Проведено численное и экспериментальное исследование конвективного теплообмена и аэродинамического сопротивления двух расположенных бок о бок каплеобразных труб в различной компоновке, размещенных в узком канале в диапазоне чисел Рейнольдса от 8000 до 40000, в сравнении с трубами круглого сечения. Представлены результаты визуализации структуры течения в следе за компоновками исследуемых труб. Показано, что теплоаэродинамическая эффективность расположенных бок о бок капельных труб в 1,2–2 раза выше, чем у труб круглого сечения за счет более низкого аэродинамического сопротивления каплеобразных труб.

We studied numerically and experimentally convective heat transfer and drag of two side-by-side tubes in different arrangements in the narrow channel at the Reynolds number ranging from 8000 to 40000 in comparison with circular tubes. The visualization results of the flow structure in the wake behind the arrangements of the investigated tubes are presented. It is shown that the thermal and hydraulic performance of side-by-side drop-shaped tubes is by a factor of 1.2–2 higher than that of circular tubes due to a lower drag of drop-shaped tubes.

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The authors declare that there are no conflicts of interest present.