Comparison of the results for calculation of vortex currents after sudden expansion of the pipe with different diameters

• Autorzy: Kholboev B. M. , Navruzov D. P. , Asrakulova D. S. , Engalicheva N. R. , Turemuratova A. A.

Identyfikatory

DOI

10.2478/ijame-2022-0023

• Języki publikacji: EN

Abstrakty

EN

In this work, a numerical study of a sharply expanding highly swirling flow is carried out using v2-f models based on the Comsol Multiphysics 5.6 software package and a two-fluid turbulence model. The results obtained are compared with known experimental data with different pipe diameters. The purpose of this work is to test the ability of models to describe anisotropic turbulence. It is shown that the two-fluid model is more suitable for studying such flows.

Słowa kluczowe

EN

two-fluid turbulence model; sudden expansion; velocity fluctuation; intensity of fluctuations; gas resistance; quasi-periodic regime

PL

fluktuacja prędkości; prąd wirowy; anizotropia turbulencji

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2022
• Tom: Vol. 27, no. 2
• Strony: 115--123
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Kholboev B. M.

• Plekhanov Russian University of Economics in Tashkent, 3 Shakhriabad, Tashkent 100164, UZBEKISTAN

autor

Navruzov D. P.

• Plekhanov Russian University of Economics in Tashkent, 3 Shakhriabad, Tashkent 100164, UZBEKISTAN

autor

Asrakulova D. S.

• Plekhanov Russian University of Economics in Tashkent, 3 Shakhriabad, Tashkent 100164, UZBEKISTAN

autor

Engalicheva N. R.

• Plekhanov Russian University of Economics in Tashkent, 3 Shakhriabad, Tashkent 100164, UZBEKISTAN

autor

Turemuratova A. A.

• Plekhanov Russian University of Economics in Tashkent, 3 Shakhriabad, Tashkent 100164, UZBEKISTAN

Bibliografia

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• [3] Smirnov P.E. (2006): Testing the v2-f-model of turbulence in the calculation of flow and heat transfer in a channel with a sudden expansion.– Inzhenerno-Fizicheskij Zhurnal, vol.79, No.4, p.38.
• [4] Patankar S.V. (1980): Numerical Heat Transfer and Fluid Flow.– Taylor and Francis, ISBN 978-0-89116-522-4, p.214.
• [5] Dellenback P.A., Metzger D.R. and Neitzel G.P. (1988): Measurements in turbulent swirling flow through an abrupt expansion.– AIAA J., vol.26, No.6, pp.669-681.
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• [7] Mises R.V. (1927): Remarks on hydrodynamics.– NASA Transl. into english from Z. Angew. Math. Mech. (Berlin), vol.7, pp. 425-431.
• [8] Bradshaw P., Ferriss D.H. and Atwell N.P. (1967): Calculation of boundary layer development using the turbulent energy equation.– J. Fluid Mech., vol.28, pp.593-616.
• [9] Spalart, P.R. and Allmaras, S.R. (1992): A One-Equation Turbulence Model for Aerodynamics Flows.– Boeing Commercial Airplane Group, Seattle, Washington.
• [10] Volk B.L., Lagoudas D.C., Chen Y.C. and Whitley K.S. (2010): Analysis of the finite deformation response of shape memory polymers: I. Thermomechanical characterization.– Smart Materials and Structures, vol.19, No.7, p.10, DOI: 10.1088/0964-1726/19/7/075005.
• [11] Ratajczak M., Ptak M., Chybowski L., Gawdzińska K. and Będziński R. (2019): Material and structural modeling aspects of brain tissue deformation under dynamic loads.– Materials, MDPI, vol.12, No.2, Article number 271, p.13, doi: 10.3390/ma120271.
• [12] Reparaz J.S., Pereira da Silva K., Romero A.H., Serrano J., Wagner M.R., Callsen G., Choi S.J., Speck J.S. and Goñi A.R. (2018): Comparative study of the pressure dependence of optical-phonon transverse-effective charges and linewidths in wurtzite.– In N. Phys. Rev. B, vol.98, Article number 165204, DOI: https://doi.org/10.1103/PhysRevB.98.165204.

Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)