EDN: OCIXEI
Authors & Affiliations
Prudnikov A.G., Mamaev V.K., Severinova V.V.
Federal Autonomous Institution “Central Institute of Aviation Motors named after P.I. Baranov”, Moscow, Russia
Abstract
Prudnikov A.G. – Head of Sector, Professor, Dr. Sci. (Tech.).
Mamaev V.K. – Leading Researcher, Cand. Sci. (Phys.-Math.). Contacts: 2, Aviamotornaya st., Moscow, Russia, 111116. Tel.: +7 (495) 362-1317, (495) 362-13-17, +7 (999) 966-19-87; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Severinova V.V. – Engineer.
Abstract
The stochastic model of vortex formation and their interaction is proposed, and the application examples to describe a vortex flame are provided. According to the vortex model, any shear layer consists of a vortex layer with a cascading spectrum of large vortices of constant vorticity. The equations of applied vortex mechanics for intermittent media are presented that define the dynamics of three different levels of various continuous media mechanics at least: two co-flowing streams and their vortex layer, each volume of a large vortex, etc. According to vortex mechanics it is assumed that the loss of kinetic energy during the inelastic formation of a large vortex from two shifted half-waves can be manifested as small vortices of volumetric local turbulence, the decaying energy of which converts this loss into heat. Turbulent vortices in the surface part of local turbulence arise from secondary shears of the vortex layer on the external curls of its laminar vortex coils, thereby creating a surface turbulent mantle that masks the large-vortex skeleton of any layer (wake, jet, etc.). The role of volumetric local turbulence is evident only in the combustion fronts of the “retarded” large vortex curls. It determines not the combustion rate, not the injection rate, but only the completeness of combustion of the turbulent large vortex in the flame.
Keywords
vortex boundary layer, turbulent eddies, shear layer, large eddies, pseudoturbulence, homogeneous combustion, stochastic dynamics, vortex model, continuous medium, thermal gas aerodynamics
Article Text (PDF, in Russian)
References
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UDC 532.526
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2025, no. 3, 3:17
