Large eddy simulations of a triangular jet and its counterpart through a chamber

doi:10.1088/1674-1056/ab8623

Abstract A free triangular jet (TJ1) and its counterpart initially passing a short circular chamber (TJ2) are numerically modeled using large eddy simulation (LES). This paper compares the near-field characteristics of the two jets in detail. To enable some necessary experimental validations, the LES conditions of TJ1 and TJ2 are taken to be identical to those measured by Xu et al. (Sci. China Phys. 56 1176 (2013)) and England et al. (Exp. Fluids. 48 69 (2010)), respectively. The LES predictions are found to agree well with those measurements. It is demonstrated that a strong swirl occurs near the chamber inlet plane for the TJ2 flow. At the center of the swirl, there is a cluster of three sink foci, where each focus is aligned midway between the original triangular apexes. In the vortex skeleton constructed from the time-averaged flow field, the vortices arising from the foci are helically twisted around the core of the jet. As the flow passes through the chamber, the foci merge to form a closed-loop “bifurcation line”, which separates the inward swirling flow and the outward oscillating jet. This global oscillation is regarded as a source node near the centerline of the chamber. If the chamber is removed for a “free” jet, i.e., TJ1, a cluster of three pairs of counter-rotating foci is produced and the net swirl circulation is zero, so the overall oscillation of the jet does not occur.

Keywords: turbulent triangular jet large eddy simulation

Received: 06 December 2019
Revised: 23 January 2020
Accepted manuscript online:

PACS:	47.27.wg	(Turbulent jets)
	47.27.-i	(Turbulent flows)
	47.85.lk	(Mixing enhancement)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51879022, 51979045, and 51906029), the Fundamental Research Funds for the Central Universities, China (Grant Nos. 3132019197, 3132020187, and 3132019037), the Projects for Dalian Youth Star of Science and Technology, China (Grant No. 2018RQ12), and the China Postdoctoral Science Foundation (Grant No. 2019M661084).

Corresponding Authors: Jian-Chun Mi
E-mail: jmi@pku.edu.cn

Cite this article:

Xiu Xiao(肖秀), Guo-Chang Wang(王国昌), Min-Yi Xu(徐敏义), Jian-Chun Mi(米建春) Large eddy simulations of a triangular jet and its counterpart through a chamber 2020 Chin. Phys. B 29 064701

[1]	Aleyasin S S, Tachie M F and Koupriyanov M 2017 J. Fluids Eng. 139 101206
[2]	Schadow K C, Gutmark E, Parr D M and Wilson K J 2004 Exp. Fluids 6 129
[3]	Rahman M S, Tay G F K and Tachie M F 2019 Flow Turbul. Combust. 103 797
[4]	Hussain F and Husain H S 1989 J. Fluid Mech. 208 257
[5]	Li Y, Li B, Qi F and Wang X 2017 Chin. Phys. B 26 024701
[6]	Grinstein F F, Gutmark E and Parr T 1995 Phys. Fluids 7 1483
[7]	Vouros A P, Panidis T, Pollard A and Schwab R R 2015 Int. J. Heat Fluid Flow 51 383
[8]	Deo R C, Mi J and Nathan G J 2007 Exp. Therm. Fluid Sci. 32 545
[9]	Xu M, Zhang J, Mi J, Nathan G J and Kalt P A M 2013 Chin. Phys. B 22 034701
[10]	Shi X D, Feng L H and Wang J J 2019 J. Fluid Mech. 868 66
[11]	Mi J and Nathan G J 2010 Flow Turbul. Combust. 84 583
[12]	Iyogun C O and Birouk M 2009 Flow Turbul. Combust. 82 287
[13]	Quinn W R 2005 Exp. Fluids 39 111
[14]	Ghasemi A, Tuna B A and Li X 2019 J. Fluid Mech. 864 141
[15]	Gutmark E and Grinstein F F 1999 Annu. Rev. Fluid Mech. 31 239
[16]	Lindstrom A and Amitay M 2019 AIAA J. 57 2783
[17]	Lee S K 2009 Study of a naturally oscillating triangular-jet flow (PhD Dessertation) (Adelaide: The University of Adelaide)
[18]	Zhang J, Xu M and Mi J 2014 Chin. Phys. B 23 044704
[19]	Xu M, Mi J and Li P 2012 Flow Turbul. Combust. 88 367
[20]	Hinze J O 1975 Turbulence (New York: McGraw-Hill)
[21]	Germano M, Piomelli U, Moin P and Cabot W H 1991 Phys. Fluids A 3 1760
[22]	Lilly D K 1992 Phys. Fluids A 4 633
[23]	England G, Kalt P A M, Nathan G J and Kelso R M 2010 Exp. Fluids 48 69
[24]	Xu M, Zhang J, Mi J, Nathan G J and Kalt P A M 2013 Sci. Chin. Phys. Mech. 56 1176
[25]	Mi J, Xu M and Zhou T 2013 Phys. Fluids 25 075101
[26]	Fellouah H and Pollard A 2009 Phys. Fluids 21 115101
[27]	Sadeghi H, Lavoie P and Pollard A 2014 J. Turbul. 15 335
[28]	Salkhordeh S, Mazumdar S, Jana A and Kimber M L 2019 Flow Turbul. Combust. 102 559
[29]	Wong C Y, Nathan G J and Kelso R M 2008 J. Fluid Mech. 606 153
[30]	Chakraborty P, Balachandar S and Adrian R J 2005 J. Fluid Mech. 535 189
[31]	Jeong J and Hussain F 1995 J. Fluid Mech. 285 69
[32]	Green S I 1995 Fluid Vortices (Netherlands: Springer)

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Large eddy simulations of a triangular jet and its counterpart through a chamber

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