Distinctive features of variation in the thermal structure of impinging gas jets / Zhilkin B. P.,Zaikov N. S.,Kisel'nikov A. Yu.,Khudyakov P. Yu. // FLUID DYNAMICS. - 2013. - V. 48, l. 2. - P. 232-238.

ISSN/EISSN:

0015-4628 / нет данных

Type:

Article

Abstract:

Turbulent structures occurring in impinging air jets in both original and excited states are identified by means of processing the sequences of thermal images (thermal videofilms). It is assumed that the structure in a jet is a flow region in all whose points (elements) the temperature as a control parameter varies with time in accordance with a single dynamic law. An analysis of the obtained two-dimensional distributions of the characteristic frequencies of temperature fluctuations in impinging air jets makes it possible to reveal and to determine the generation and the localization of structure regions, the time intermittence effect, the difference in the nature of structure formations, and the structure formation effect on heat transfer.

Author keywords:

impinging jets; local heat transfer intensity; grid temperature transformer; spectra; temperature fields; turbulent structures

DOI:

10.1134/S0015462813020105

Web of Science ID:

ISI:000317929400010

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Research-Areas	Mechanics; Physics
Web-of-Science-Categories	Mechanics; Physics, Fluids \& Plasmas
Number-of-Cited-References	10
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	19
Journal-ISO	Fluid Dyn.
Doc-Delivery-Number	130PA