The Effect of Boundary Conditions on the Modeling of Anomalous Intensification of Turbulent Heat Transfer in an Inclined Groove in the Wall of a Narrow Channel

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Abstract

The effect of the boundary conditions of the first and second kind on the predicted characteristics of anomalous heat transfer intensification in the case of turbulent low-velocity air flow over an inclined groove in the hot wall of a narrow channel is numerically investigated. It is shown that the isothermality conditions lead to a considerable underestimation of the thermal efficiency of a surface structured with narrow grooves, compared with the conditions of heat flux constancy.

About the authors

S. A. Isaev

St. Petersburg State Marine Technical University;St. Petersburg State University of Civil Aviation

Email: isaev3612@yandex.ru
190121, St. Petersburg, Russia; 196210, St. Petersburg, Russia

A. G. Sudakov

St. Petersburg State University of Civil Aviation

Email: isaev3612@yandex.ru
196210, St. Petersburg, Russia

D. V. Nikushchenko

St. Petersburg State Marine Technical University

Email: isaev3612@yandex.ru
190121, St. Petersburg, Russia

V. B. Kharchenko

St. Petersburg State Marine Technical University

Email: isaev3612@yandex.ru
190121, St. Petersburg, Russia

L. P. Iunakov

Baltic State Technical University “Voenmekh”

Author for correspondence.
Email: isaev3612@yandex.ru
190005, St. Petersburg, Russia

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Copyright (c) 2023 С.А. Исаев, А.Г. Судаков, Д.В. Никущенко, В.Б. Харченко, Л.П. Юнаков

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