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Control of the Parameters of an Exhaust Jet by Increasing the Eddy Viscosity at the Nozzle Edge

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Journal of Engineering Physics and Thermophysics Aims and scope

Abstract

We studied the possibility of changing the parameters of the exhaust wake in the far field of the jet behind a large passenger aircraft (aerobus) by increasing the coefficient of eddy viscosity at the edge of the nozzle of a double‐flow engine with a high double‐flow ratio (>10) without mixing with the aid of artificial turbulizers created in the outer and inner ducts. Within the model of turbulence with one differential equation for the coefficient of viscosity, we obtained numerical solutions for velocity, temperature, concentrations of vapor and condensate, and the coefficient of viscosity for different variants which disclose the essence of a physico‐mathematical model of the phenomenon and predict possible changes of the parameters of the exhaust jet with artificial increase of viscosity in the initial section and the jet volume.

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  1. Prof. N. E. Zhukovskii Central Aerohydrodynamic Institute, 1 Zhukovskii Str., Zhukovskii, Moscow Region, 140180, Russia

    A. N. Kucherov

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  1. A. N. Kucherov
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Kucherov, A.N. Control of the Parameters of an Exhaust Jet by Increasing the Eddy Viscosity at the Nozzle Edge. Journal of Engineering Physics and Thermophysics 76, 1227–1237 (2003). https://doi.org/10.1023/B:JOEP.0000012023.29399.52

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  • DOI: https://doi.org/10.1023/B:JOEP.0000012023.29399.52

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