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Scientific Object Identifier: http://s-o-i.org/1.1/TAS-11-127-43
DOI: https://dx.doi.org/10.15863/TAS.2023.11.127.43
Language: English
Citation: Khodjiev, S., & Jamolov, U. (2023). Modeling and numerical results of investigation of the influence of the irregularity of wake jets on mixing in flat channels. ISJ Theoretical & Applied Science, 11 (127), 347-355. Soi: http://s-o-i.org/1.1/TAS-11-127-43 Doi: https://dx.doi.org/10.15863/TAS.2023.11.127.43 |
Pages: 347-355
Published: 30.11.2023
Abstract: In this work, based on the complete Navier-Stokes equations, numerical simulation of a compressible gas in flat channels of constant cross section is performed. For the convenience of solving the system of equations, the procedure of "dimensionless" coordinates and physical parameters was carried out, and the coordinate transformation transforming the rectangular computational domain into a square one, as well as the coordinate transformations that ensure the finite-difference grid thickening in areas with the sharpest change in the flow parameters, both in the inlet part and at the channel wall. On the basis of the developed calculation algorithm, the influence of the non-design of coaxial jets on mixing and propagation in a limited flat channel was numerically studied. Numerically identified and analyzed, what are the ratios of the height of the inlet slots, and the initial data on the temperature, velocity and pressure of the wake jets, which in the initial sections of the channel are observed (not observed) the recirculation zone.
Key words: internal flows, simulation, flow, numerical solution, pressure, jet, Navies-Stokes, coaxial, mixing, off-design.
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