Abstract
The possibility of enhancing or attenuating the mixing in a turbulent jet excited by a two-frequency acoustic signal consisting of fundamental and subharmonic tones is investigated experimentally. It is shown that two-frequency acoustic excitation of the jet is effective only at low frequencies, whereas at high frequencies the effect of two-frequency and single-frequency forcing is almost the same.
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REFERENCES
S. G. Gorelov and S. V. Rusakov, “The variable-diameter rough spherical molecule model,” Mat. Modelirovanie, 9, No. 10, 43 (1997).
S. G. Gorelov and S. V. Rusakov, “Shock wave structure in a gas with internal degrees of freedom,” Izv. Ross. Akad. Nauk, Mekh. Zhidk. Gaza, No. 3, 121 (1999).
S. G. Gorelov and S. V. Rusakov, “Direct statistical (Monte-Carlo) simulation of rotational-vibrational molecular interaction,” Mat. Modelirovanie, 12, No. 9, 55 (1997).
G. A. Bird, Molecular Gas Dynamics and the Direct Simulation of Gas Flows, Clarendon Press, Oxford (1994).
R. C. Millikan and D. R. White, “Systematics of vibrational relaxation,” J. Chem Phys., 39, 3209 (1963).
C. Park, “Assessment of two-temperature kinetic model for ionizing air,” J. Thermophysics and Heat Transfer, 3, 233 (1989).
E. E. Nikitin, Theory of Elementary Atomic-Molecular Processes in Gases [in Russian], Khimiya, Moscow (1970).
K. Koura and H. Matsumoto, “Variable soft sphere molecular model for inverse-power-law or Lenard-Jones potential,” Phys. Fluids, 3, 2459 (1991).
Thermophysical Properties of Technically Important Gases at High Temperatures and Pressures: A Handbook [in Russian], Energoatomizdat, Moscow (1989).
A. V. Lukshin and S. N. Smirnov, “On a stochastic method for solving the Boltzmann equation,” Zh. Vychisl. Matematiki Mat. Fiziki, 28, 293 (1988).
V. L. Kovalev, Heterogeneous Catalytic Re-entry Processes [in Russian], Izd-vo MGU, Moscow (1999).
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Vlasov, E.V., Ginevskii, A.S., Karavosov, R.K. et al. Study of Two-Frequency Excitation of Turbulent Jets by Fundamental and Subharmonic Tones. Fluid Dynamics 37, 505–507 (2002). https://doi.org/10.1023/A:1019631212381
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DOI: https://doi.org/10.1023/A:1019631212381