壁湍流等动量区对惯性颗粒分布的影响

姚易辰; 许春晓

doi:10.7638/kqdlxxb-2019.0126

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壁湍流等动量区对惯性颗粒分布的影响

专栏——湍流结构研究 | 更新时间：2026-05-28

- 壁湍流等动量区对惯性颗粒分布的影响
- Influence of uniform momentum zone on inertial particle distribution in wall turbulence
- 空气动力学学报 2020年38卷第1期页码：107-117
- 作者机构：
  
  清华大学工程力学系,北京,100084
- 作者简介：
  
  姚易辰(1990-), 男, 江苏人, 博士, 研究方向:湍流.E-mail:yaoyichen23@163.com
  许春晓(1968-), 教授, 研究方向:湍流.E-mail:xucx@tsinghua.edu.cn
- 基金信息：
  
  国家自然科学基金项目（91752205，11490551）
- DOI：10.7638/kqdlxxb-2019.0126
  中图分类号： O359
- 纸质出版：2020
- 稿件说明：
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姚易辰, 许春晓. 壁湍流等动量区对惯性颗粒分布的影响[J]. 空气动力学学报, 2020, 38(1): 107-117.

YAO Yichen, XU Chunxiao. Influence of uniform momentum zone on inertial particle distribution in wall turbulence[J]. 2020, 38(1): 107-117.
姚易辰, 许春晓. 壁湍流等动量区对惯性颗粒分布的影响[J]. 空气动力学学报, 2020, 38(1): 107-117. DOI： 10.7638/kqdlxxb-2019.0126.

YAO Yichen, XU Chunxiao. Influence of uniform momentum zone on inertial particle distribution in wall turbulence[J]. 2020, 38(1): 107-117. DOI： 10.7638/kqdlxxb-2019.0126.

摘要

对摩擦雷诺数为1000、颗粒Stokes数为1.0的含颗粒槽道湍流进行了直接数值模拟，采用高斯函数叠加法提取了等动量区的模态速度，对各等动量区内的颗粒分布进行了分析。发现在高动量的核心区，颗粒平均浓度高于非核心区，而浓度脉动低于非核心区。在等动量区界面上，流体速度和颗粒浓度变化剧烈，展向涡结构的出现导致了局部颗粒浓度较低。在等动量区的界面以下，在较高的壁面法向位置，存在大尺度的浓度幅值低而浓度脉动高的结构，其等值线分布与核心区/非核心区界面一致。

Abstract

Direct numerical simulation was performed to particle-laden turbulent channel flow at the friction Reynolds number of 1000 and particle Stokes number of 1.0. Superposed Gaussian functions were adopted to extract the modal velocity of uniform momentum zone (UMZ). The particle distributions in each UMZ were studied. In the quiescent core region with large fluid momentum

the particle concentration is higher and the concentration fluctuation is lower than those in the non-core region. Distinct abrupt change of velocity and particle concentration exists at the UMZ interface. The presence of spanwise vortical structures leads to the local minimum value of particle concentration. Beneath the UMZ interface at high wall-normal position

there exists large-scale regions with low concentration magnitude and high concentration fluctuation. The contour of the concentration is in consistent with the shape of the turbulent/non-turbulent interface.

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references

ROBINSON S K. Coherent motions in the turbulent boundary layer[J]. Annual Review of Fluid Mechanics, 1991, 23:601-639.

HAMILTON J M, KIM J, WALEFFE F. Regeneration mechanisms of near-wall turbulence structures[J]. Journal of Fluid Mechanics, 1995, 287:317-348.

MEINHART C D, ADRIAN R J. On the existence of uniform momentum zones in a turbulent boundary layer[J]. Physical of Fluids, 1995, 7(4):694-696.

ADRIAN R J, MEINHART C D, TOMKINS C D. Vortex organization in the outer region of the turbulent boundary layer[J]. Journal of Fluid Mechanics, 2000, 422:1-54.

DE SILVA C, MARUSIC I, HUTCHINS N. Uniform momentum zones in turbulent boundary layers[J]. Journal of Fluid Mechanics, 2016, 786:309-331.

TOMKINS C D, ADRIAN R J. Spanwise structure and scale growth in turbulent boundary layers[J]. Journal of Fluid Mechanics, 2003, 490:37-74.

LEE J H, SUNG H J. Very-large-scale motions in a turbulent boundary layer[J]. Journal of Fluid Mechanics, 2011, 673:80-120.

KWON Y S, PHILIP J, DE S C M, et al. The quiescent core of turbulent channel flow[J]. Journal of Fluid Mechanics, 2014, 751:228-254.

NEUMANN P, UMHAUER H. Characterization of the spatial distribution state of particles transported by a turbulent gas flow[J]. Experiments in Fluids, 1991, 12(1-2):81-89.

RASHIDI M, HETSRONI G, BANERJEE S. Particle-turbulence interaction in a boundary layer[J]. International Journal of Multiphase Flow, 1990, 16(6):935-949.

BROOKE J W, KONTOMARIS K, HANRATTY T J, et al. Turbulent deposition and trapping of aerosols at a wall[J]. Physics of Fluids A, 1992, 4:825-834.

PEDINOTTI S, MARIOTTI G, BANERJEE S. Direct numerical simulation of particle behaviour in the wall region of turbulent flows in horizontal channels[J]. International Journal of Multiphase Flow, 1992, 18(6):927-941.

MAXEY M R. The gravitational settling of aerosol particles in homogeneous turbulence and random flow fields[J]. Journal of FluidMechanics, 1987, 174:441-465.

SQUIRES K D, EATON J K. Particle response and turbulence modification in isotropic turbulence[J]. Physics of Fluids A, 1990, 2(7):1191-1203.

WANG L P, MAXEY M R. Settling velocity and concentration distribution of heavy particles in homogeneous isotropic turbulence[J]. Journal of Fluid Mechanics, 1993, 256:27-68.

ROUSON D W I, EATON J K. On the preferential concentration of solid particles in turbulent channel flow[J]. Journal of Fluid Mechanics, 2001, 428:149-169.

WANG L P, ZHOU Y, WEXLER A S. Statistical mechanical description and modelling of turbulent collision of inertial particles[J]. Journal of Fluid Mechanics, 2000, 415:117-153.

READE W C, COLLINS L R. Effect of preferential concentration on turbulent collision rates[J]. Physics of Fluids, 2000, 12(10):2530-2540.

JIE Y, XU C, DAWSON J R, et al. Influence of the quiescent core on tracer spheroidal particle dynamics in turbulent channel flow[J]. Journal of Turbulence, 2019, 20(7):429-438.

NIU S J, ZHANG C Z, SUN J M, et al. Observational studies on sand-dust storm in helan mountainous area[J]. Acta Meteorologica Sinica, 2001, 15(4):485-497.

GU Y, ROSE W I, BLUTH G J S. Retrieval of mass and sizes of particles in sandstorms using two MODIS IR bands:a case study of April 7, 2001 sandstorm in china[J]. Geophysical Research Letters, 2003, 30(15):157-168.

GUALA M, LEHEW J, METZGER M, et al. On the structure of wall turbulence in the thermally neutral atmospheric surface layer[A]. Coherent Flow Structures at Earth's Surface[M]. John Wiley Sons, Ltd. 2016.

FU P, ZHONG S, HUANG J, et al. An observational study of aerosol and turbulence properties during dust storms in northwest China[J]. Journal of Geophysical Research Atmospheres, 2012, 117(D9):9202.

ZHENG X J, ZHANG J H, WANG G H, et al. Investigation on very large scale motions(vlsms) and their influence in a dust storm[J]. Science China Physics Mechanics Astronomy, 2013, 56(2):306-314.

BALACHANDAR S, EATON J K. Turbulent dispersed multiphase flow[J]. Annual Review of Fluid Mechanics, 2010, 42:111-133.

FERRY J, BALACHANDAR S. A fast Eulerian method for disperse two-phase flow[J]. International Journal of Multiphase Flow, 2001, 27(7):1199-1226.

KARNIADAKIS G E, ISRAELI M, ORSZAG S A. High-order splitting methods for the incompressible Navier-Stokes equations[J]. Journal of Computational Physics, 1991, 97(2):414-443.

MARCHIOLI C, SOLDATI A, KUERTEN J G M, et al. Statistics of particle dispersion in direct numerical simulations of wall-bounded turbulence:results of an international collaborative benchmark test[J]. International Journal of Multiphase Flow, 2008, 34(9):879-893.

ZHAO L, ANDERSSON H I. Statistics of particle suspensions in turbulent channel flow[J]. Communications in Computational Physics, 2012, 11(4):1311-1322.

MARUSIC I, MCKEON B J, MONKEWITZ P A, et al. Wall-bounded turbulent flows at high Reynolds numbers:recent advances and key issues[J]. Physics of Fluids, 2010, 22(6):065103.

LEE M, MOSER R D. Direct numerical simulation of turbulent channel flow up to Re-tau approximate to 5200[J]. Journal of Fluid Mechanics, 2015, 774:395-415.

CHONG M S, PERRY A E, CANTWELL B J. A general classification of three-dimensional flow fields[J]. Physics of Fluids A, 1990, 2(5):765-777.

ADRIAN R J. Hairpin vortex organization in wall turbulence[J]. Physics of Fluids, 2007, 19:041301.

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