Numerical study of turbulent separated flows in axisymmetric diffusers based on a two-fluid model

• Autorzy: Kholboev B. , Malikov Z. M. , Madaliev M. E. , Shoev M. , Masharipov S.

Identyfikatory

DOI

10.59441/ijame/191629

• Języki publikacji: EN

Abstrakty

EN

This paper discusses a numerical study of turbulent flow at Re = 1.56×104 in an axisymmetric diffuser with half-angle expansion α=14°, 18° и 90°. The results obtained are compared with known experimental data. The flow at the diffuser inlet is fully developed turbulent. To simulate the flow, a relatively recently developed two-fluid turbulence model in the Comsol Multiphysics software package was used. The paper also presents numerical results of the well-known SST and SA turbulence models, which are included in the Comsol Multiphysics software package. It is shown that the two-fluid turbulence model in the Comsol Multiphysics software package is capable of producing more accurate results than known models. In addition, it demonstrated good convergence and stability.

Słowa kluczowe

EN

Navier-Stokes equations; separated flow; turbulent flow; two-fluid model

PL

równanie Naviera-Stokesa; dyfuzor osiowosymetryczny; przepływ turbulentny

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2024
• Tom: Vol. 29, no. 4
• Strony: 121--142
• Opis fizyczny: Bibliogr. 32 poz., rys., wykr.

Twórcy

autor

Kholboev B.

• Information System and Mathematical Sciences, Plekhanov Russian University of Economics, UZBEKISTAN

• https://orcid.org/0000-0001-7466-5839

autor

Malikov Z. M.

• Fluid Mechanics, 1Institute of Mechanics and Earthquake Engineering M.T. Urazbaev, Academy of Sciences of the Republic of Uzbekistan, UZBEKISTAN

• https://orcid.org/0000-0002-0922-6490

autor

Madaliev M. E.

• Fluid Mechanics, Institute of Mechanics and Earthquake Engineering M.T. Urazbaev, Academy of Sciences of the Republic of Uzbekistan., UZBEKISTAN

• https://orcid.org/0000-0001-9994-8907

autor

Shoev M.

• Fluid Mechanics, 1Institute of Mechanics and Earthquake Engineering M.T. Urazbaev, Academy of Sciences of the Republic of Uzbekistan, UZBEKISTAN

• https://orcid.org/0000-0002-3350-1050

autor

Masharipov S.

• Applied Sciences, Tashkent University of Information Technologies, named after Muhammad al-Khwarizmi, UZBEKISTAN

• https://orcid.org/0000-0002-9414-3250

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)