Abstract—
Subsonic flows of different gases in the near field of inert and reacting jets is experimentally investigated. The jets flowed out of long tubes, 2 to 8 mm in diameter, into an air medium at low Reynolds numbers from 400 to 5000. The working fluids were air, carbon dioxide, propane, and Freon-22 for inert isothermal jets and propane mixed with an inert dilution (СО2) for reacting jets. The tools included Hilbert visualization, PIV, thot-wire anemometry, and probe thermometry. A scenario of transition to turbulence through the intermittence mechanism in inert and reacting jets is revealed for the first time. It is realized in the Reynolds number range from 1900 to 3500, when laminar-turbulent transition occurs within the jet source, that is, the tube, in the absence of artificial disturbances. Turbulent spots generated in the tube in the transitional regime are statistical in nature and fairly stable in the jet near-field. Propagating downstream they can have a considerable effect on the dynamics of free jets and diffusion plumes.
Similar content being viewed by others
REFERENCES
G. N. Abramovich, Theory of Turbulent Jets (MIT Press, Cambridge, 1963).
O. I. Navoznov, A. A. Pavel’ev, and A. V. Yatsenko, “The transition to turbulence in submerged jets and wakes,” Fluid Dynamics 7(4), 672—678 (1972).
C. M. Ho and P. Huerre, “Perturbed free shear layers,” Annu. Rev. Fluid Mech. 16, 356–424 (1984). https://doi.org/10.1146/annurev.fl.16.010184.002053
A. Michalke, “Survey on jet instability theory,” Progr. Aerospace Sci. 21(3), 159–199 (1984). https://doi.org/10.1016/0376-0421(84)90005-8
A. S. Ginevsky, Y. V. Vlasov, and R. K. Karavosov, Acoustic Control of Turbulent Jets (Springer-Verlag, Berlin, 2004). https://doi.org/10.1007/978-3-540-39914-8
V. V. Kozlov, G. R. Grek, and Yu. A. Litvinenko, Visualization of Conventional and Combusting Subsonic Jet Instabilities (Springer International Publishing, 2016). https://doi.org/10.1007/978-3-319-26958-0
C. G. Ball, H. Fellouah, and A. Pollard, “The flow field in turbulent round free jets,” Progr. Aerospace. Sci. 50, 1–26 (2012). https://doi.org/10.1016/j.paerosci.2011.10.002
I. V. Belyaev, O. P. Bychkov, M. Yu. Zaitsev, V. A. Kopiev, V. F. Kopiev, N. N. Ostrikov, G. A. Faranosov, and S. A. Chernyshev, “Development of the strategy of active control of instability waves in unexcited turbulent jets,” Fluid Dynamics 53(3), 347—360 (2018). https://doi.org/10.7868/S0568528118030027
A. F. Hussain and K. Zaman, “The preferred mode of the axisymmetric mode,” J. Fluid Mech. 110, 39–71 (1981). https://doi.org/10.1017/S0022112081000608
G. Nathan, J. Mi, Z. Alwahabi, G. Newbold, and D. Nobes, “Impacts of a jet’s exit flow pattern on mixing and combustion performance,” Progr. Energy Combust. Sci. 32, 496–538 (2006). https://doi.org/10.1016/j.pecs.2006.07.002
A. J. Reynolds, “Observations of a liquid-into-liquid jet,” J. Fluid Mech. 14, 552–556 (1962). https://doi.org/10.1017/S0022112062001433
V. V. Lemanov, V. V. Terekhov, K. A. Sharov, and A. A. Shumeiko, “An experimental study of submerged jets at low Reynolds numbers,” Techn. Physics Lett. 39(5), 421—423 (2013). https://doi.org/10.1134/S1063785013050064
Yu. S. Zaiko, A. I. Reshmin, S. Kh. Teplovodskii, and A. D. Chicherina, “Investigation of submerged jets with an extended initial laminar region,” Fluid Dyanmics 53(1), 95—104 (2018). https://doi.org/10.7868/S0568528118010103
J. Zayko, S. Teplovodskii, A. Chicherina, V. Vedeneev, and A. Reshmin, “Formation of free round jets with long laminar regions at large Reynolds numbers,” Phys. Fluids 30, Art. No. 043603 (2018). https://doi.org/10.1063/1.5021017
T. Mullin, “Experimental studies of transition to turbulence in a pipe,” Annu. Rev. Fluid Mech. 43, 1–24 (2011). https://doi.org/10.1146/annurev-fluid-122109-160652
K. Avila, D. Moxey, A. De Lozar, M. Avila, D. Barkley, and B. Hof, “The onset of turbulence in pipe flow,” Science 333, 192–196 (2011). https://doi.org/10.1126/science.1203223
N. V. Nikitin and V. O. Pimanov, “Sustainment of oscillations in localized turbulent structures in pipes,” Fluid Dynamics 53(1), 65—73 (2018). https://doi.org/10.7868/S0568528118010073
F. Takahashi, M. Mizomoto, and S. Ikai, “Transition from laminar to turbulent free jet diffusion flame,” Combustion Flame 48, 85–95 (1982). https://doi.org/10.1016/0010-2180(82)90117-1
V. V. Lemanov, V. V. Lukashov, R. Kh. Abdrakhmanov, V. A. Arbuzov, Yu. N. Dubnishchev, and K. A. Sharov, “Regimes of unstable expansion and diffusion combustion in a hydrocarbon fuel jet,” Combustion, Explosion, Shock Waves 54(3), 255—263 (2018). https://doi.org/10.15372/FGV20180301
R. C. Reid, J. M. Prausnitz, and T. K. Sherwood, The Properties of Gases and Liquids (McGraw-Hill, New York, 1977).
Yu. N. Dubnishchev, V. A. Arbuzov, P. P. Belousov, and P. Ya. Belousov, Optical Methods of Flow Investigation (Novosibirsk Univ. Press, 2003) [in Russian].
Y. N. Dubnishchev, V. A. Arbuzov, V. V. Lukashov, K. A. Sharov, and V. V. Lemanov, “Optical Hilbert Diagnostics of Hydrogen Jet Burning,” Optoelectron. Instrument. Proc. 55(1), 16–19 (2019). https://doi.org/10.3103/S8756699019010035
S. V. Alekseenko, A. V. Bilsky, V. M. Dulin, D. M. Markovich, “Experimental study of an impinging jet with different swirl rates,” Int. J. Heat Fluid Flow 7, 1340–1359 (2007). https://doi.org/10.1016/j.ijheatfluidflow.2007.05.011
C. L. Kuan and T. Wang, “Investigation of the intermittent behavior of transitional boundary layer using a conditional averaging technique,” Exp. Therm. Fluid Sci. 3(2), 157–173 (1990). https://doi.org/10.1016/0894-1777(90)90084-K
V. Lemanov, V. Lukashov, K. Sharov, and D. Nezavitin, “Turbulent spots in the flame of a diffusion torch,” J. Phys.: Conf. Ser. 1382, Art. No. 012058 (2019). https://doi.org/10.1088/1742-6596/1382/1/0120
Funding
The study is carried out within the framework of the State Assessment of the Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences АААА-А17-117030310010-9.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The Authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Additional information
Translated by M. Lebedev
Rights and permissions
About this article
Cite this article
Lemanov, V.V., Lukashov, V.V. & Sharov, K.A. Transition to Turbulence through Intermittence in Inert and Reacting Jets. Fluid Dyn 55, 768–777 (2020). https://doi.org/10.1134/S0015462820060087
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0015462820060087