Interaction between large-scale vortex structure and dispersed particles in a three  dimensional mixing layer

Abstract

Abstract: In order to understand the interaction between large-scale vortex structure and particles,
a two-waycoupling temporal mixing layer laden with particles at a Stokes number of 5 with
different mass loading plantedinitially in the upper half region is numerically studied.
The pseudospectral method is used for the flow fluid andthe Lagrangian approach is employed
to trace particles. The momentum coupling effect introduced by a particle isapproximated to
a point force. The simulation results show that the coherent structures are still dominant
in themixing layer, but the large-scale vortex structure and particle dispersion are
modulated. The length of large-scalevortex structure is shortened and the pairing is
delayed. At the same time, the particles are distributed more evenlyin the whole flow field
as the mass loading is increased, but the particle dispersion along the transverse
directiondiffers from that along the spanwise direction, which indicates that the effect by
the addition of particle on thespanwise large-scale vortex structure is different from the
streamwise counterpart.

Key words: interaction, modulation, two-way coupling, large-scale vortex structures, particle dispersion

摘要： In order to understand the interaction between large-scale vortex structure and particles,
a two-waycoupling temporal mixing layer laden with particles at a Stokes number of 5 with
different mass loading plantedinitially in the upper half region is numerically studied.
The pseudospectral method is used for the flow fluid andthe Lagrangian approach is employed
to trace particles. The momentum coupling effect introduced by a particle isapproximated to
a point force. The simulation results show that the coherent structures are still dominant
in themixing layer, but the large-scale vortex structure and particle dispersion are
modulated. The length of large-scalevortex structure is shortened and the pairing is
delayed. At the same time, the particles are distributed more evenlyin the whole flow field
as the mass loading is increased, but the particle dispersion along the transverse
directiondiffers from that along the spanwise direction, which indicates that the effect by
the addition of particle on thespanwise large-scale vortex structure is different from the
streamwise counterpart.

关键词: interaction;modulation;two-way coupling;large-scale vortex structures;particle dispersion

LUO Kun, ZHENG Youqu, FAN Jianren, CEN Kefa . Interaction between large-scale vortex structure and dispersed particles in a three
dimensional mixing layer[J]. .

罗坤, 郑友取, 樊建人, 岑可法. 三维混合层中大涡结构与扩散颗粒的相互作用[J]. CIESC Journal.

References

[1] Crowe, C.T., Gore, R. A., Troutt, T. R., "Particle dispersion by coherent structures in
free shear flows", Partic. Sci.Technol. J., 3, 149-158 (1985).
[2] Elghohashi, S. E., "On predicting particles by turbulence",App. Sci. Res., 52, 309--329
(1994).
[3] Marcu, B., Meiburg, E., "Three dimensional features of particle dispersion in a plane
mixing layer", Phys. Fluids, 8,2266-2268 (1996).
[4] Tong, X. L., Wang, L. P., "Direct simulations of particle transport in two and three
dimensional mixing layers",Proc. ASME Fluids Engineering Division Summer Meeting,ASME,
Vancouver, BC, Canada (1997).
[5] Ling W., Chung, J.N., Troutt, T.R., Crowe, C.T., "Direct numerical simulation of a
three-dimensional temporing mixing layer with particle dispersion", J. Fluid Mech., 358,61
-85 (1998).
[6] Squires, K.D., Eaton, J. K., "Preferential concentration of particles by turbulence",
Phys. Fluids A, 3, 1169-1178(1991).
[7] Tang, X.L., Wang, L.P., "Two-way coupled particle-laden mixing layer. Part 1. Linear
instability", Proc. ASME Fluids Engineering Division Summer Meeting, ASME, Washington, DC,
USA (1998).
[8] Tong, X.L., Wang, L.P., "Two-way coupling particle-laden mixing layer. Part 2.
Nonlinear evolution", In ICMF’983rd, Int. Conf. on Multiphase Flow, ICMF, Lyon, France
(1998).
[9] Ling, W., Chung, J. N., Crowe, C.T., "Direct numerical simulation of the two-way
coupling interaction between particles and mixing layer" Proc. R. Soc. Lond. A, 456,2931-
2955 (2000).
[10] Zheng, Y.Q., Fan, J.R., Yao, J., Cen, K.F., "Direct numerical simulation of three-
dimensional coherent structure in plane mixing layer", Progress in Natural Science, 11
(3),235-240 (2001).
[11] Phillips, T.N., Malek, A., "Multidomain collocation methods for the stream function
formulation of the NavierStokes equations", SIAM J. Sci. Comput., 16 (4), 773-797(1995).
[12] Fan, J.R., Zheng, Y.Q., Yao, J., Cen, K.F., "Direct simulation of particle dispersion
in a three dimensional temporal mixing layer", Proc. R. Soc. Lond. A, 457, 2151-2166(2001).

[1]	Junfeng LU, Huaiyu SUN, Yanlei WANG, Hongyan HE. Molecular understanding of interfacial polarization and its effect on ionic liquid hydrogen bonds [J]. CIESC Journal, 2023, 74(9): 3665-3680.
[2]	Yuanliang ZHANG, Xinqi LUAN, Weige SU, Changhao LI, Zhongxing ZHAO, Liqin ZHOU, Jianmin CHEN, Yan HUANG, Zhenxia ZHAO. Study on selective extraction of nicotine by ionic liquids composite extractant and DFT calculation [J]. CIESC Journal, 2023, 74(7): 2947-2956.
[3]	Hao XIONG, Xiaoyu LIANG, Chenxi ZHANG, Haolong BAI, Xiaoyu FAN, Fei WEI. Heavy oil to chemicals: multi-stage downer catalytic pyrolysis [J]. CIESC Journal, 2023, 74(1): 86-104.
[4]	Lingfei KONG, Yanpei CHEN, Wei WANG. Dynamic study of mesoscale structures of particles in gas-solid fluidization [J]. CIESC Journal, 2022, 73(6): 2486-2495.
[5]	Wei LIU, Yan SUN. Research progress on amyloid β-protein aggregation and its regulation [J]. CIESC Journal, 2022, 73(6): 2381-2396.
[6]	Hongxia CHEN, Linhan LI, Xiang GAO, Yiran WANG, Yuxiang GUO. Enhancement of nucleate boiling by temporary modulation of wettability during the bubble dynamic process [J]. CIESC Journal, 2022, 73(4): 1557-1565.
[7]	Wenjie LAN, Xiaojie HU, Dizong CAI. Determination of interaction force between droplet and solid surface using droplet probe [J]. CIESC Journal, 2022, 73(3): 1119-1126.
[8]	Xiaodong XU, Chenbo MA, Jianjun SUN, Yuyan ZHANG, Qiuping YU. Influence and optimization of groove structure parameters on vaporization characteristics of liquid film mechanical seals based on optimal mass transfer coefficient [J]. CIESC Journal, 2022, 73(3): 1147-1156.
[9]	Yingjie YANG, He YANG, Jialong ZHU, Shuangqi GUO, Yan SHANG, Yang LI, Lijun JIN, Haoquan HU. Interaction between functional groups during slow pyrolysis of Naomaohu coal [J]. CIESC Journal, 2022, 73(2): 865-875.
[10]	Meng MA, Yonghui BAI, Juntao WEI, Lunjing YAN, Peng LYU, Jiaofei WANG, Xudong SONG, Weiguang SU, Guangsuo YU. Research and progress of volatile-char interaction during biomass and coal (co-)pyrolysis/gasification process [J]. CIESC Journal, 2022, 73(11): 5186-5200.
[11]	Haifeng LU, Jiakun CAO, Xiaolei GUO, Haifeng LIU. Study on fine powders discharged from hopper based on interparticle interactions analysis [J]. CIESC Journal, 2021, 72(8): 4047-4054.
[12]	CHEN Hongxia, LI Linhan, WANG Yiran, GUO Yuxiang, LIU Lin. Enhancement of single bubble boiling heat transfer on micropillar surface by wettability modulation with time and space [J]. CIESC Journal, 2021, 72(6): 3278-3287.
[13]	WEI Xiaolan, XIE Pei, WANG Weilong, LU Jianfeng, DING Jing. Calculation of phase diagram and thermal stability of molten salt for ternary chloride systems containing calcium [J]. CIESC Journal, 2021, 72(6): 3074-3083.
[14]	LI Bingfan, LIU Gang, CHEN Lei. Study on the influence mechanism of CH₄ dissolution on the intermolecular interaction between crude oil molecules based on molecular dynamics simulation [J]. CIESC Journal, 2021, 72(3): 1253-1263.
[15]	An CHEN, Guangsheng LUO, Jianhong XU. Research progress on quantitative exploration of the interaction mechanism between droplets [J]. CIESC Journal, 2021, 72(12): 5955-5964.

Interaction between large-scale vortex structure and dispersed particles in a three
dimensional mixing layer

三维混合层中大涡结构与扩散颗粒的相互作用

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments