Dr. Dil P. Navruzov Profile

Dr. Dil P. Navruzov

at AKFA Univ

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Proceedings Article | 18 May 2022 Paper

Numerical study of a circular jet based on a modern turbulence model

Z. Malikov, D. Navruzov, K. Adilov, S. Juraev

Proceedings Volume 12251, 122510H (2022) https://doi.org/10.1117/12.2631607

KEYWORDS: Turbulence, Mathematical modeling, Data modeling, Liquids, Systems modeling, Motion models, Krypton, Databases, Data corrections, Computing systems

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A two-fluid model of turbulence is verified in this article by the example of an axisymmetric incompressible jet. The study of an axisymmetric jet is conducted on the basis of a complete system of equations for the two-fluid model of turbulence, and a simplified system of equations according to the Prandtl boundary layer theory. To obtain a stationary solution of the complete system of equations for the two-fluid turbulence model, the relaxation method was used, i.e. a non-stationary system of equations was solved, the solution of which asymptotically approaches the stationary solution. In the numerical implementation in convective terms, the control volume approach was used, and the correction of velocity was performed according to the SIMPLEC methods. A simplified system of equations was reduced to a parabolic type by eliminating the longitudinal components in the viscous terms, and ignoring the effect of pressure. Therefore, for the numerical implementation of the simplified system of equations, an absolute stable implicit marching method was used. The obtained numerical results were compared with experimental data from the NASA database.

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