非球形粒子反弹分布特性试验探究

推进技术 ›› 2018, Vol. 39 ›› Issue (3): 638-644.

非球形粒子反弹分布特性试验探究

牛佳佳,王锁芳,李鹏飞

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室，江苏南京 210016

发布日期:2021-08-15
作者简介:牛佳佳，女，硕士生，研究领域为发动机进气防护。E-mail: 18551669486@163.com 通讯作者:王锁芳，男，教授，研究领域为流动与传热。

Experimental Research on Rebound Distribution Characteristics of Non-Spherical Particles

Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System， Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System， Nanjing 210016，China and Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System， Nanjing 210016，China

Published:2021-08-15

摘要/Abstract

摘要： 砂粒撞击发动机进气粒子分离器壁面会决定粒子的运动轨迹。为了获得不规则形状对反弹特性的影响，进行了600[μm]钢珠及600 ~ 800[μm]非球形石英颗粒撞击树脂涂层板/合金钢板/铝板的试验，并分析了统计分布规律。试验结果表明，球形颗粒的恢复系数较为集中，而非球形的石英粒子在相同角度下的恢复系数大致符合高斯分布。切向恢复系数分布则随着撞击角度增加变得更加集中，标准差在撞击角为10°时可达0.28。法向恢复系数趋势相反，标准差在70°时为0.38。法向恢复系数小于0的概率为0，且呈正偏态分布。不同材料壁面的恢复系数相对分布范围主要受粗糙度影响，但对于法向恢复系数，还受到法向分量引起的变形的影响。

关键词: 粒子-壁面碰撞；分布特性；恢复系数；非球形粒子

Abstract: Sand impinging engine inlet particle separator wall will determine the particle trajectories. To get the influence of irregular shape on the rebound characteristics， the experiment of 600[μm] steel ball and 600~800[μm] non-spherical quartz particles impinging resin coated/alloy steel/Al plate was carried， and the statistical distribution law was analyzed. The experimental results show that the restitution coefficient of spherical particles is more concentrated， while the restitution coefficient of non-spherical quartz particles in the same angle accords with Gaussian distribution. The tangential restitution coefficient becomes more concentrated with the increase of the impact angle， while its standard deviation can be up to 0.28 at[θi=10°]. The normal restitution coefficient shows an opposite trend， while its standard deviation can be up to 0.38 at[θi=70°]. The normal restitution coefficient is positively skew distribution， and it won’t be less than 0. The relative distribution range of restitution coefficient impacting different surface is mainly affected by roughness. But for normal restitution coefficient， the deformation caused by the normal impact is also of great importance.

Key words: Particle-wall collision；Distribution characteristics；Restitution coefficient；Non-spherical particle

牛佳佳,王锁芳,李鹏飞. 非球形粒子反弹分布特性试验探究[J]. 推进技术, 2018, 39(3): 638-644.

NIU Jia-jia,WANG Suo-fang,LI Peng-fei. Experimental Research on Rebound Distribution Characteristics of Non-Spherical Particles[J]. Journal of Propulsion Technology, 2018, 39(3): 638-644.

参考文献

[1] 何洪庆, 周旭. 固体火箭发动机燃烧室中的颗粒轨迹[J]. 推进技术, 1999, 20(5): 25-29. (HE Hong-qing, ZHOU Xu. Particle Trajectories in Combustion Chamber of Solid Rocket Motor [J]. Journal of Propulsion Technology, 1999, 20(5): 25-29.)
[2] Kruggel-Emden H, Simsek E, Rickelt S, et al. Review and Extension of Normal Force Models for the Discrete Element Method[J]. Powder Technology, 2007, 171(3): 157-173.
[3] Kruggel-Emden H, Sturm M, Wirtz S, et al. Selection of an Appropriate Time Integration Scheme for the Discrete Element Method (DEM)[J]. Computers & Chemical Engineering, 2008, 32(10): 2263-2279.
[4] Ghaednia H, Pope S A, Jackson R L, et al. A Comprehensive Study of the Elasto-Plastic Contact of a Sphere and a Flat[J]. Tribology International, 2016, 93: 78-90.
[5] Troiano M, Salatino P, Solimene R, et al. Wall Effects in Entrained Particle-Laden Flows: The Role of Particle Stickiness on Solid Segregation and Build-Up of Wall Deposits[J]. Powder Technology, 2014, 266: 282-291.
[6] Kruggel-Emden H, Wirtz S, Scherer V. An Analytical Solution of Different Configurations of the Linear Viscoelastic Normal and Frictional-Elastic Tangential Contact Model[J]. Chemical Engineering Science, 2007, 62(23): 6914-6926.
[7] Cheng Z, Zhu M. Analyzing the Effect of Wall Roughness on Gas-Particle Flow in Confined Channels Based on a Virtual-Wall-Group Concept[J]. International Journal of Multiphase Flow, 2015, 77: 158-170.
[8] Konan N A, Kannengieser O, Simonin O. Stochastic Modeling of the Multiple Rebound Effects for Particle-Rough Wall Collisions[J]. International Journal of Multiphase Flow, 2009, 35(10): 933-945.
[9] Thornton C, Cummins S J, Cleary P W. An Investigation of the Comparative Behaviour of Alternative Contact Force Models During Inelastic Collisions[J]. Powder Technology, 2013, 233: 30-46.
[10] Kruggel-Emden H, Rickelt S, Wirtz S, et al. A Study on the Validity of the Multi-Sphere Discrete Element Method[J]. Powder Technology, 2008, 188(2): 153-165.
[11] Gheadnia H, Cermik O, Marghitu D B. Experimental and Theoretical Analysis of the Elastic-Plastic Oblique Impact of a Rod with a Flat[J]. International Journal of Impact Engineering, 2015, 86: 307-317.
[12] H?hner D, Wirtz S, Kruggel-Emden H, et al. Comparison of the Multi-Sphere and Polyhedral Approach to Simulate Non-Spherical Particles within the Discrete Element Method: Influence on Temporal Force Evolution for Multiple Contacts[J]. Powder Technology, 2011, 208(3): 643-656.
[13] Stronge W J. Rigid Body Collisions with Friction[J]. Proceedings of the Royal Society A, 1990, 431(1881):169-181.
[14] Goldsmith W, Frasier J T. Impact: The Theory and Physical Behavior of Colliding Solids[J]. Applied Physics A, 1965, 121(1): 69-76.
[15] Maw N, Barber J R, Fawcett J N. The Role of Elastic Tangential Compliance in Oblique Impact[J]. Journal of Tribology, 1981, 103(1): 74-80.
[16] Maw N, Barber J R, Fawcett J N. The Oblique Impact of Elastic Spheres [J]. Wear, 1976, 38(1): 101-114.
[17] Kharaz A H, Gorham D A, Salman A D. An Experimental Study of the Elastic Rebound of Spheres [J]. Powder Technology, 2001, 120(3): 281-291.
[18] Sommerfeld M, Huber N. Experimental Analysis and Modelling of Particle-Wall Collisions[J]. International Journal of Multiphase Flow, 1999, 25(6): 1457-1489.
[19] Sommerfeld M. Modelling of Particle-Wall Collisions in Confined Gas-Particle Flows[J]. International Journal of Multiphase Flow, 1992, 18(6): 905-926.
[20] Gui N, Yang X, Tu J, et al. A Generalized Particle-to-Wall Collision Model for Non-Spherical Rigid Particles [J]. Advanced Powder Technology, 2016, 27(1): 154-163.
[21] 徐义华, 胡春波, 李江. 炭化层对粒子反弹系数测量试验研究[J]. 弹箭与制导学报, 2011, 31(1): 119-122.
[22] 王成军, 李耀明, 马履中, 等. 小麦籽粒碰撞模型中恢复系数的测定[J]. 农业工程学报, 2012, 28(11):274-278.
[23] 陈福振, 强洪夫, 高巍然, 等. 固体火箭发动机内气粒两相流动的SPH-FVM耦合方法数值模拟[J]. 推进技术, 2015, 36(2): 175-185. (CHEN Fu-zhen, QIANG Hong-fu, GAO Wei-ran, et al. Numerical Simulation of Gas-Particle Two-Phase Flow in SRM with SPH-FVM Coupled Method[J]. Journal of Propulsion Technology, 2015, 36(2): 175-185.)
[24] Zhong W, Yu A, Liu X, et al. DEM/CFD-DEM Modelling of Non-Spherical Particulate Systems: Theoretical Developments and Applications[J]. Powder Technology, 2016, 302: 108-152.(编辑:史亚红)　　　　　　　　　　　　　*　收稿日期:2016-11-07；修订日期:2017-01-04。作者简介:牛佳佳,女,硕士生,研究领域为发动机进气防护。E-mail: 18551669486@163.com通讯作者:王锁芳,男,教授,研究领域为流动与传热。E-mail: sfwang@nuaa.edu.cn