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Numerical Investigation of Coaxial Turbulent Jet


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DOI: https://doi.org/10.15866/ireme.v13i2.16668

Abstract


The paper presents a numerical study of a compressible and turbulent coaxial jet, using a Large Eddy Simulation type approach. This study focuses on the implementation of a high-performance and modern numerical method to meet the requirements in terms of results accuracy and calculation cost. The code was parallelized using the Message Passing Interface (MPI) library. Inviscid fluxes are evaluated using a new linearization solver for the equations characteristic of approximate Riemann problem and the solution has been advanced over time using an explicit two-step McCormack method. The purpose of this study is to understand the initial stage of the transition process from laminar to turbulent flow in coaxial jets. Therefore, it has been determined that the first step in the transition process from laminar to turbulent flow in coaxial jets is initiated by the development of Kelvin Helmholtz (primary vortices) in sheer layers, while three-dimensionalization turbulence is initiated in the second step with the emergence of secondary vortices. The transverse evolution of Reynolds tensors showed that the axial Reynolds tensor contribution is associated with primary instability while the transversal Reynolds tensor contribution is associated with secondary instability. Flow self-similarity state is obtained in fully developed turbulence region. Axi-symmetric mode predominates on each shear layer in the initial flow region. The results obtained are in good agreement with experimental results similar to this study's simulated jet.
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Keywords


Coaxial Jet; Riemann Solver; MUSCL

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References


Champagne, F. H.; Wygnanski, I. J.: An experimantal investigation of coaxial turbulent jets. Int. J. Heat Mass Transfer, 1971; 14. 1445–1464.
https://doi.org/10.1016/0017-9310(71)90191-8

Warda, H. A.; Kassab, S. Z.; Elshorbagy, K. A.; Elsaadawy, E. A: An experimental investigation of the near-field region of a free turbulent coaxial jet using LDA. Flow Measurement and Instrumentation, 1999; 10. 15-26.
https://doi.org/10.1016/s0955-5986(98)00041-7

Forstall, W.; Shapiro, A. H. (1951): Momentum and mass transfer in coaxial gas jets. J. Appl. Mech. 18 219–23.

Ko, N. W. M.; Kwan, A. S. H. (1976): The initial region of subsonic coaxial turbulent jets. J. Fluid Mech. 73, 305–32.
https://doi.org/10.1017/s0022112076001389

Kwan, A. S. H.; Ko, N. W. M. (1977): The initial region of subsonic coaxial jets Part 2. J. Fluid Mech. 82 273–87.
https://doi.org/10.1017/s0022112077000664

Buresti, G.; Petagna, P.; Talamelli, A. (1998): Experimental investigation on the turbulent near-field of coaxial jets. Exp. Therm. Fluid Sci. 17 18–26.
https://doi.org/10.1016/s0894-1777(97)10045-0

Crow, C. S., Champagne, F. H. (1971): Orderly structure in jet turbulence. J. Fluid Mech., 48 :547–591.
https://doi.org/10.1017/s0022112071001745

Villermaux, E.; Rahab, H. (2000): Mixing in coaxial jets. J. Fluid Mech. 425 :161–185.
https://doi.org/10.1017/s002211200000210x

Rehab, H.; Villermaux, E.; Hopfinger, E. J. (1997): Flow regimes and mixing in the near field of large velocity ratio coaxial jets. 11th Symposium on Turbulent Shear Flows, Grenoble, France, 8-10 september, 3(25). 7-10.

Ferrao, P. C.; Heotor, M. V.; Matos, M. F.; Salles, R. K. (1990): Turbulent scalar mixing in coaxial jet flows. Proceedings of 1st International Conference on Turbulence and Shear Flows Phenomena, Santa Barbara, California, USA.

Da Silva, C. B.; Métais O. (2001): Coherent structures in excited spatially evolving round jets Direct and Large-Eddy Simulation vol 4, New York Kluwer.
https://doi.org/10.1007/978-94-017-1263-7_25

Da Silva, C. B.; Balarac, G.; Metais, O. (2003): Transition in high velocity ration coaxial jets analysed from direct numerical simulations. Journal Turbulence, 4. 1-18.

Balarac, G.; Metais, O. (2005): The near field of coaxial jets. Phys. Fluids 17 065102.
https://doi.org/10.1063/1.1900786

Balarac, G.; Si-Ameur, M.; Lesieur, M.; Metais, O. (2007): Direct numerical simulations of high velocity ratio coaxial jets: mixing properties and influence of upstream conditions. J Turbulence. 8 1–14.
https://doi.org/10.1080/14685240600833094

Dianat, M.; Yang, Z.; Jiang, D.; Mcguirk, J. J. (2006): Large eddy simulation of scalar mixing in a coaxial confined jet Flow. Turblence Combustion. 77, 205-27.
https://doi.org/10.1007/s10494-006-9044-4

Jahnke, S.; Kornev, N.; Tkatchenko, I.; Hassel, E.; Leder, A. (2005): Numerical study of influence of different parameter on mixing in coaxial jet mixer using LES. Heat Mass Transfer, 41:471–481.
https://doi.org/10.1007/s00231-004-0521-9

Balarac, G.; Si-Ameur, M. (2005): Mixing and coherent vortices in turbulent coaxial jets. C. R. Mecanique, 333:622–627.
https://doi.org/10.1016/j.crme.2005.07.003

Dinesh, K. K. J. R.; Savill, A. M.; Jenkins, K. W.; Kirkpatrick, M.P. (2010): A study of mixing and intermittency in a coaxial turbulent jet. Fluid Dynamics Research, 42(2).
https://doi.org/10.1088/0169-5983/42/2/025507

Michael, R. G. (2014): Numerical investigation on hydrodynamic and noise radiation of coaxial jets flows. Thesis Doctor of Sciences of Eth ZuricH.

Smagorinsky, J. (1963): General circulation experiments with the primitive equations. Mon. Weather Rev. 91 99–164.
https://doi.org/10.1175/1520-0493(1963)091<0099:gcewtp>2.3.co;2

Laney, C.B. (1993): Computational Gas Dynamics. Cambridge University Press.

Kopchenov, V. I.; Kraiko, A. N. (1983): A second-order monotone difference scheme for hyperbolic systems with two independent variables. U.S.S.R. Comput. Math. Phys., 23:4, 50-56.
https://doi.org/10.1016/s0041-5553(83)80128-1

Yamamoto, S.; Daiguji, H. (1993): Higher order accurate upwind schemes for solving compressible Euler and Navier–Stokes equations. Comput. Fluids. 22(2/3) 259–270.
https://doi.org/10.1016/0045-7930(93)90058-h

MacCormack, R.W.(1969): The Effect of Viscosity in Hyper Velocity Impact Cratering. Journal of Space Craft. 69-354.

Guitton, A. (2009): Experimental study of the relations between hydrodynamic and acoustic fields of free jets. Doctoral Thesis. Université de Poitiers.

Bogey, C.; Barre, C.; Juve, P.; Bailly, C. (2009): Simulation of a hot coaxial jet: Direct noise prediction and flow-acoustics correlations. Physics of Fluids 21.
https://doi.org/10.1063/1.3081561

Kasyanov, P.O., Toscano, L., Zadoianchuk, N.V., Topological properties of strong solutions for the 3D Navier-Stokes equations, (2014) Solid Mechanics and its Applications, 211, pp. 181-187.
https://doi.org/10.1007/978-3-319-03146-0_13

Kasyanov, P.O., Toscano, L., Zadoianchuk, N.V., A criterion for the existence of strong solutions for the 3D Navier-Stokes equations, (2013) Applied Mathematics Letters, 26 (1), pp. 15-17.
https://doi.org/10.1016/j.aml.2012.08.007


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