Heat transfer and skin-friction in channel with flow behind a cylinder

Kiselev, N.A.; Zditovets, A.G.; Vinogradov, Y.A.

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.

Авторы: Kiselev N.A., Zditovets A.G., Vinogradov Yu A.
Журнал: Journal of Physics: Conference Series
Том: 2088
Номер: 1
Год издания: 2021
Издательство: IOP Publishing
Местоположение издательства: [Bristol, UK], England
Первая страница: 012055
DOI: 10.1088/1742-6596/2088/1/012055
Аннотация: The paper presents the results of an experimental study of the parameters of the boundary layer, distribution of static pressure, heat transfer and friction coefficients of smooth surface located in the wake behind the cylinder in the channel. Cylinders of various diameters were placed in a slotted channel with a height of 30 mm on its axis. In all experiments, the flow velocity at the inlet was 50 m/s. The cylinder was made unheated. The friction coefficients of the smooth model were determined both from the velocity profile in the boundary layer and by direct weighing of the model on a one-component strain-gage balance. The local values of the heat transfer coefficients were determined by transient heat-transfer method using a thermal imager. The values of the heat transfer and friction coefficients in the wake behind the cylinder, referred to the values on the smooth wall in the undisturbed flow, varied in the range 1.15–1.65 and 1.3–1.75, respectively. The value of the Reynolds analogy factor for all cylinder diameters turned out to be less than unity.
Добавил в систему: Здитовец Андрей Геннадьевич

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