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JOURNALS // Teplofizika vysokikh temperatur // Archive

TVT, 2019 Volume 57, Issue 5, Pages 793–796 (Mi tvt11135)

This article is cited in 4 papers

Short Communications

Smoke deposition upon nonlinear oscillations in an open tube near resonance

D. A. Gubaidullin, R. G. Zaripov, L. A. Tkachenko, L. R. Shaidullin

Research Institute of Mechanics and Machinery of Kazan Scientific Center of the Russian Academy of Sciences

Abstract: Experimental studies were performed with visualization of the deposition of tobacco smoke filling an open tube at different heights upon nonlinear oscillations. The dependences of the numerical concentration of tobacco smoke particles on time were obtained for various amplitudes of piston displacement at the first natural frequency. The deposition time was found to have a nonmonotonic dependence of on the height of the tube filling with smoke. With an increase in the filling height, the time increases, reaching a maximum for three-quarters of the tube, then decreases again with the complete tube filling due to the emission of smoke from the top of the tube into the surrounding space. Deposition occurs much faster in the presence of oscillations than in their absence.

UDC: 532.529: 534.2

Received: 18.11.2018
Revised: 15.02.2019
Accepted: 27.03.2019

DOI: 10.1134/S0040364419040070


 English version:
High Temperature, 2019, 57:5, 768–770

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