厚美瑛

简介:

女,1952年生。1975年毕业于台湾大学物理系,1980年获美国哥伦比亚大学物理系博士学位.1986-1998年先后在美国普林斯顿(Princeton)大学物理系、印第安那(Indiana)大学化学系、法国原子能委员会国家实验室、加拿大Laval大学物理系、美国E & E等公司工作。现任中国科学院物理研究所研究员,博士生导师。

主要研究方向:

软凝聚态物理,颗粒物质的集团动力学性质的实验研究.

过去的主要工作及获得的成果:

主要工作在以下几个方面:
1.局域电场对颗粒流动行为起调控作用实验研究了外加电场对颗粒流动行为的影响,当电场强度达到某一临界值时,电场对颗粒流动起阻碍作用,首次观察到并研究了颗粒流的稀疏流-密集流相转变以及颗粒流动自发密度波受电场作用波长改变等现象。
2.颗粒稀疏流到密集流的相转变研究类似于交通流的瓶颈效应,颗粒流在槽宽变窄处也会出现瓶颈效应.对二维颗粒流实验观测得到二维颗粒流从稀疏流到密集流相转变的普适规律,揭示了“瓶颈效应”的物理本质。发现当初始稀疏颗粒流量固定,出口的尺寸减小到一临界值时;或固定出口的尺寸,颗粒流量增大到一临界值时,都会发生流量的突然减小,从稀疏流转变为密集流突变。此临界流量与出口尺寸、颗粒尺寸及通道宽度之间的普适标度关系。并且发现,在出口处颗粒的体积分数达到约0.65时,则发生稀疏流到密集流转变。这一规律对所有离散态物质流动具有普适性,如对人流、交通流、浮冰流,以及工农业生产中的离散物输运等。论文发表在Phys. Rev. Lett.。
3.振动使颗粒分聚,而不是混合均匀无序颗粒物质的自发分聚现象是吸引物理学家研究的关注点之一。振动大小颗粒混合的颗粒体系,发生所谓的“巴西果效应”,即大小颗粒分层,大颗粒在上,小颗粒在下。但是长久以来人们对其形成机理并不十分清楚。美国的研究小组对“巴西果”或“反巴西果效应”的发生有不同的意见。厚美瑛和学生通过不同密度大球在不同尺寸颗粒床中振动的实验,系统研究了大球上升和下降的规律。发现当大球和颗粒密度比大于某临界值时,大球上升(巴西果效应),且上升速度随密度比增大呈幂次方变快;密度比小于此临界值时,则大球下降(反巴西果效应),下降速度随密度比减小呈幂次方变快。更重要的是,发现间歇气体的气压在“反巴西果”的形成中起关键作用。论文发表于Phys. Rev. Lett.(2003)。
4.颗粒体系的阻力研究颗粒体系由于力链结构的非均匀性,体系的阻力描述较一般流体要复杂得多,厚美瑛研究组系统的研究了快速,慢速运动物体在颗粒床中的阻力形式,给出了运动方程,指出除了流体中的浮力,粘滞阻力外,颗粒体中还需考虑等效摩擦力和边界支撑力。
5.颗粒气体的速度分布律作为非平衡体系经典模型,颗粒体系的统计描述一直是物理学家感兴趣的课题之一。与法国合作,在欧空局,法国航天局,中国航天局和科学院的支持下,利用失重飞机,返回式卫星等的微重力环境,实验研究宏观颗粒气体的速度分布律,分析还发现振动驱动的长程边界效应,这结果挑战现有颗粒固体的流体力学模型。6.颗粒团聚现象研究单仓聚集的相分离与以色列Meerson教授合作理论研究了以气体分子相分离为模型建立颗粒气体聚集现象的相分离模型,以此解释颗粒气体所特有的团簇形成现象。
7.双仓聚集的非线性行为研究主要研究热点之一聚焦于双仓双分散颗粒聚集现象的非线性行为,发表了11篇SCI论文,其中两篇代表性论文发表在Phys. Rev. Lett.上:(1)Phys. Rev. Lett. 100, 068001(2008)。以“温度”振荡的概念解释双仓双分散颗粒振荡现象,将两种颗粒碰撞的不对称性考虑到温度模型中,提出双温度体系模型。 (2) Phys. Rev. Lett. 109, 198001 (2012)。研究发现,双仓双分散颗粒振荡行为还存在一种新的退化振荡现象(d-OSC态),此时较大的颗粒主要聚集在其中一仓内,只有很少一部分跟随较小的颗粒在双仓中振荡。OSC态对应于非线性振荡相平面上的单一极限环,而d-OSC态对应为中心对称的双极限环。通过实验研究证实了从OSC态到d-OSC态的转变是一种同宿轨道分岔行为。在研究中还发现,噪声在体系各态间的相互转变过程中有着显著的效应,其中在OSC态到d-OSC态的转变点附近,噪声会导致OSC态单一极限环上较近的两点之间或者d-OSC态的双极限环之间的跳跃,使得此两种振荡态无法被区别开来,形成一种低频发散的随机振荡现象。报道了二维同宿轨道分岔体系中的这种随机振荡现象.
8.声波在颗粒体系中的传播声波在颗粒介质中主要是沿着力链结构传播,因此声波在颗粒介质中传播的速度、频率响应和幅度变化将可用来反映介质的力结构。研究了纵波波速随剪切应力的变化,并以颗粒固体流体动力学理论分析解释了实验结果;以此建立了直剪颗粒体系力结构的声波探测法,并给出了颗粒尺寸与容器尺寸对体系抗剪能力的影响。

科研成果:
1 首次将颗粒流分为稀疏流、密集流与堵塞相三种态,提出相转变规律,对离散态物质的流动具有普适性,这项工作2003年受邀在欧洲“协作粒子:从颗粒物质到纳米材料”会议做邀请报告.
2 在颗粒振动分离方面确定反巴西果现象的存在,并提出其与间歇气体气压相关的解释,解决了之前学术界的争议,被2004年物理进展报告《Reports on Progress in Physics》作为颗粒分层机制的一个重要实验进展详细介绍。
3 在颗粒系统阻力研究的论文改正前人在PRL上发表的论点,认为阻力项中应加入等效摩擦与边壁效应,被《Nature Physics》等引用。
4 非平衡态多体体系的统计分布律一直是受关注的问题,与法国物理学家合作,利用失重飞机、返回式卫星等提供的微重力环境,实验获得非高斯速度分布律,提出挑战性的长程边界效应等问题,给出解释模型,被推荐进入ESA(欧空局)国际空间站Space Grains专题组,并经国际同行投票选举为AEMMG(国际颗粒材料微观力学专业委员会)委员。5 在双仓双分散颗粒体系研究方面,建立的“颗粒时钟”体系被认为不仅是非线性物理研究领域感兴趣的课题,而且能形象给出温度双稳体系的动力学模型,为很好的非线性物理典型模型体系,两篇论文发表在2008年和2012年的Phys.Rev.Lett.上,多次受邀在国际会议上报告。
6 在2016年4月我国首发的科学卫星上完成为微重力颗粒气体团簇形成研究以及双仓麦克斯韦妖实验。
7 在双仓单种颗粒系统DEM模拟并分析了类似双仓双颗粒的两仓振荡现象,论文发表于2016年的Phys.Rev.E的Rapid Communication上。

主持和成功完成与颗粒物理相关的多项项目,包括有科学院知识创新工程项目,科学院先导项目,基金委重大国际合作项目,重点项目,国家地震局行业专项以及科技部973课题之外,在微重力空间实验方面她提出的颗粒物质三维相分离实验与空间输运研究方案还获得欧空局和法国航天局的支持,加入国际空间站“振动驱动微重力下的颗粒运动行为研究”项目,并多次参加法国抛物线飞行试验。

代表性论文及专利:

代表性论文目录如下
1.“Coupled Leidenfrost states as a monodisperse granular clock” Rui Liu, Mingcheng Yang, Ke Chen, Meiying Hou, and Kiwing To ,Phys. Rev. E 94, 020901®,2016.
2. “The anisotropy of free path in a vibro-fluidized granular gas”, Yifeng Mei, Yanpei Chen, Wei Wang, Meiying Hou,Chin. Phys. B,25,8,084501(2016).
3. “颗粒气体团簇行为实验研究”,王花 陈琼 王文广 厚美瑛, Acta Physica Sinica,65, 014502 (2016).
4. “倾斜沙漏流与颗粒休止角研究” ,张昱,韦艳芳,彭政,蒋亦民,段文山,厚美瑛,Acta Physica Sinica, 65, 084502 (2016).
5. “不同形状混合器中二元颗粒的分聚与混合研究” ,闫明,段文山,陈琼,周志刚,张昱,赵闯,厚美瑛,Chinese Journal of Theoretical and Applied Mechanics,48,1,(2016).
6. “软物质主要理论综述”,吴晨旭, 严大东, 邢向军, 厚美瑛,Acta Physica Sinica, 65,186102, (2016).
7. “自扩散泳微观转动马达的介观模拟研究”,沈明仁, 刘锐, 厚美瑛, 杨明成, 陈科 Acta Physica Sinica,65, (2016)170202.
8. “Phase transition and flow-rate behavior of merging granular flows” Mao-Bin Hu, Qi-Yi Liu, Rui Jiang, Meiying Hou, and Qing-Song Wu,Phys. Rev. E,91, 022206(2015).
9. Asymmetric local velocity distribution in a driven granular gas,陈延佩,Pierre Evesuqe,厚美瑛,Engineering Computations 32,1066 (2015).
10. 二维胶体玻璃中玻色峰与结构无序度的关联,刘海霞,陈科,厚美瑛,V64,11,116302(2015).
11. 玻璃-橡胶混合颗粒的力学响应研究,陈琼,王青花,赵闯,张祺,厚美瑛,物理学报,V64,(2015).
12. “Space Program SJ-10 of Microgravity Research” W. R. Hu · J. F. Zhao · M. Long · X. W. Zhang · Q. S. Liu · M. Y. Hou · Q. Kang ·Y. R. Wang · S. H. Xu · W. J. Kong · H. Zhang · S. F.Wang · Y. Q. Sun · H. Y. Hang ·Y. P. Huang · W. M. Cai · Y. Zhao · J. W. Dai · H. Q. Zheng · E. K. Duan · J. F. WangMicrogravity Sci. Technol. V26, issue 3, pp 159-169, 2014.
13. “Effective temperature and fluctuation-dissipation theorem in athermal granular systems: A review” Chen Qiong(陈琼) and Hou Mei-Ying(厚美瑛) Chin. Phys. B Vol. 23, No. 7 (2014) 074501.
14 “Imperfect pitchfork bifurcation in asymmetric two-compartment granular gas” Zhang Yin(张因), Li Yin-Chang(李寅阊), Liu Rui(刘锐), Cui Fei-Fei(崔非非), Pierre Evesque, and Hou Mei-Ying(厚美瑛)Chin. Phys. B, V22, No.5, P.054701 (2013).
15. “Hydrodynamics of granular gases with a two-peak distribution” Yanpei Chen, Meiying Hou, Yimin Jiang, and Mario Liu Phys. Rev. E 88, 052204 (2013).
16.  “振动驱动颗粒气体体系的局域态本构关系的实验验证” 陈延佩, Pierre Evesque, 厚美瑛 物理学报, 2013, 62 (16): 164503.
17. “垂直振动激发下颗粒物质的能量耗散” 彭政,蒋亦民, 刘锐, 厚美瑛 物理学报, 2013, 62 (2): 024502.
18. “Breakdown of Energy Equipartition in Vibro-Fluidized Granular Media in Micro-Gravity” Chen Yanpei, Pierre Evesque, Meiying Hou, Chin. Phys. Lett., V29, No.7, P.074501 (2012).
19. “Gluing bifurcation and noise-induced hopping in the oscillatory phenomena of compartmentalized bi-disperse granular gases” Yinchang Li, Rui Liu, and Meiying Hou, Phys. Rev. Lett. 109, 198001 (2012).
20. “Directed segregation in compartmentalized bi-disperse granula gas ” Sajjad Hussain Shah, Li Yin-Chang(李寅阊), Cui Fei-Fei, Zhang Qi, and Hou Mei-Ying (厚美瑛), Chin. Phys. B, V21, No.1, P.014501 (2012).
21.  “Irregular Oscillation of Bi-disperse Granular Gas in Cyclic Three Compartments” Sajjad Hussain Shah, Li Yin-Chang(李寅阊), Cui Fei-Fei, Zhang Qi, and Hou Mei-Ying (厚美瑛), Chin. Phys. Lett., V29, No.3, P.034501 (2012) .
22. “Elastic Waves in the Presence of a Granular Shear Band formed by Direct Shear” Qi Zhang, Yinchang Li, Meiying Hou, Yimin Jiang, and Mario Liu, Phys. Rev. E 85, 031306 (2012).
23. “Flux measurement in compartmentalized mono-disperse and bi-disperse granular gases” Yinchang Li · Rui Liu · Mahendra Shinde · Meiying Hou, Granular Matter, (2012) 14: pp.137-143.
24.  “直剪颗粒体系声波探测” 张祺,李寅阊,刘锐,蒋亦民,厚美瑛, 物理学报, 2012, 61 (23): 234501 “直剪颗粒体系的尺寸效应研究” 张祺,厚美瑛, 物理学报, 2012, 61 (24): 244504.
25. “Long range boundary effect of 2D intermediate number density vibro-fluidized granular media in micro-gravity” Chen Yanpei, Pierre Evesque, Meiying Hou, C. Lecoutre, F. Palencia and Yves Garrabos, Journal of Physics: Conference Series 327 (2011) 012033.
26. “Traveling shock front in quasi-two-dimensional granular flows” Hu Guoqi, Li Yinchang, Hou Meiying, To Kiwing, Phys. Rev. E, vol. 81, Issue 1, 011305, 2010.
27.  “Effect of number density on velocity distributions in a driven quasi-two-dimensional granular gas” ,Sajjad Hussain Shah, Li Yin-Chang(李寅阊), and Hou Mei-Ying (厚美瑛), Chin. Phys. B, V19, No.10, P.108203 (2010) .
28.  “Oscillatory clusterings in compartmentalized granular systems” Meiying Hou(厚美瑛),Yinchang Li(李寅阊), Rui Liu(刘锐),Yin Zhang (张因) and Kunquan Lu(陆坤权)Physica Status Solidi (a), vol.207, pp.2739-2749 (2010).
29.  “稀薄颗粒气体的运动速度几率分布函数”, 厚美瑛 李寅阊,科学通报,54,1483,2009  “阻塞态颗粒介质的慢速阻力”,彭政, 陆坤权, 厚美瑛,物理学报,58,675,2009.  “Space experimental studies of microgravity fluid science in China” W. R. Hu, M. Long, Q. Kang, J. C. Xie, M. Y. Hou, J.F. Zhao, S. F.Wang,Chin. Science. Bull.  54,22, pp 4035-4048,2009.
30.  “Depth dependence of vertical drag force in granular medium” Zheng Peng, Xiantao Xu, Kunquan Lu, Meiying Hou,Phys. Rev.E 80,021301,2009.
31.  “Oscillatory Phenomena of Compartmentalized Bi-disperse Granular Gases” Rui Liu(刘锐), Yinchang Li(李寅阊) and Meiying Hou(厚美瑛), PRE 79, 052301 (2009).
32.  “分仓颗粒布居分聚现象的通量模型”,李寅阊,张兆部,涂洪恩,刘锐,胡海云,厚美瑛, 物理学报,2009  “Granular Gases in Compartmentalized Systems”, Pik-Yin Lai, May Hou, and C. K. Chan,  Journal of the Physical Society of Japan, 2009.
33.   “二维颗粒气体在堆积过程中的能量耗散” ,胡国琦,涂洪恩,厚美瑛,物理学报,58卷, 第1期,2009.
34.  “Velocity Distribution of Vibration-driven Granular Gas in Knudsen Regime in Microgravity”  M. Hou,R. Liu,G. Zhai,Z. Sun,K. Lu,Y. Garrabos,P. Evesque,Microgravity Science Technology (2008) 20:73–80.
35.  “Scientific Goals of the Topical Team on Vibration in Granular Media: (The physics with the future VIP_Gran Instrument)”Pierre EVESQUE , Angel GARCIMARTIN, Diego MAZA OZCODI, Nicolas VANDEWALLE, Yves GARRABOS, C. LECOUTRE, Daniel BEYSENS, Xiaoping JIA, Meiying HOU,Journal of Japan Society in Microgravity Application, 2008.  
36.  “Temperature Oscillations in a Compartmentalized Bi-disperse Granular Gas” ,M. Hou, H. Tu, R. Liu, Y. Li, K. Lu, P.Y. Lai and C.K. Chan, Phys. Rev. Lett. 100, 068001, 2008    “颗粒气体的类气-液相变” 厚美瑛,刘锐,Meerson B., 空间科学学报,28卷,1期,第1页,2008.
37.   “三维颗粒气体相分离现象” ,刘锐, 李寅阊, 厚美瑛, 物理学报,57卷, 2008.
38.  “运动物体在颗粒介质中的阻力形式” ,张权义,彭政,何润,刘锐,陆坤权,厚美瑛*,物理学报,56卷,8期,4708(2007).
39.   “van der Waals-like phase separation instability of a driven granular gas in three dimensions”  Rui Liu, Yinchang Li, Meiying Hou and Baruch Meerson, Phys. Rev. E 75, 079705 (2007).
40.  “Density-driven segregation in vertically vibrated binary granular mixtures” Q. Shi, G. Sun, M. Hou, K. Lu, Phys. Rev. E 75, 061302 (2007).
41.  “Velocity distribution of vibration-driven granular gas in Knudsen regime in microgravity”  Meiying Hou*, Rui Liu, Guangjie Zhai, Zhibin Sun, Kunquan Lu, Y. Garrabos and Pierre Evesque, Microgravity Science and Technology, February, 2008.
42.    “颗粒介质的离散态特性研究”,彭政,厚美瑛*,史庆藩,陆坤权,物理学报,56卷,2期,1195页(2007) “Criticality of the dilute-to-dense transition in a 2D granular flow” Jie Zhong, MeiyingHou*, Qingfan Shi and Kunquan Lu,J. Phys. Condens. Matter 18,2789–2794 (2006).
43.   “Segregation in Vertically Vibrated Binary Granular Mixtures with Same Size”,Qing-Fan, Shi, Gang, Sun*, Mei-Ying, Hou; Kun-Quan, Lu,Chinese Physics Letters, 23, 11, 2006, p.3080.
44.  “二维颗粒流从稀疏流到密集流的临界转变” ,钟杰,彭政,吴耀宇,史庆藩,陆坤权,厚美瑛*, 物理学报,55卷,12期,6691(2006).
45.   “重力驱动下运动物体在颗粒介质中的最大穿透深度”, 张权义,吴耀宇,彭政,刘锐,陆坤权,厚美瑛*,物理学报,55卷,12期,6203(2006).
46.   “颗粒速度在颗粒流稀疏流-密集流转变中的作用”,黄德财,孙刚*,厚美瑛,陆坤权,物理学报,55卷,9期,4754页(2006).
47.   “Dynamics of a projectile penetrating in granular systems” ,M. Hou*, Z. Peng, R. Liu, K. Lu, and C. K. Chan, PHYS. REV. E 72, 062301 (2005).
48.     “Projectile impact and penetration in loose granular bed” ,M. Hou*, Z. Peng, R. Liu, Y. Wu, Y. Tian, K. Lu, C.K. Chan,Science and Technology of Advanced Materials 6,855–859 (2005).
49.  “Global Nature of Dilute-to-Dense Transition of Granular Flows in a 2D Channel” ,M. Hou, W. Chen, T. Zhang, K. Lu and C. K. Chan, Phys. Rev. lett., V91, 20, p. 204301 (2003).
50.   “Electric field controlled dilute-dense flow transition in granular flow through a vertical pipe” Hou MY, Chen W, Zhang T, and KQ Lu, POWDER TECHNOLOGY, 135, pp.105-111 Sp. Iss. SI OCT 2 2003.
51. “Effects of Air on the Segregation of Particles in a Shaken Granular Bed” ,X. Yan, Q. Shi, M. Hou, K. Lu, and C. K. Chan, Phys. Rev Lett., V91, 1, p.014302.(2003).
52.  “Experimental study of segregation patterns in binary granular mixtures under vertical vibration”,Shi Q., Yan X., Hou M., Niu X., & Lu K., Chinese Science Bulletin  Vol. 48 No. 7 627-629. (2003).
53. “振动混合颗粒形成的反巴西果分层及其相图的实验观测”,史庆藩,阎学群,厚美瑛,牛小娟,陆坤权,科学通报 第48卷第4期328页 (2003).
54.    “振动颗粒混合物中的三明治式分离”,姜泽辉†*,陆坤权,厚美瑛,陈唯,陈相君,物理学报 第52卷第9期140页 (2003).
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目前的研究课题及展望:

1.颗粒物质稀疏流 – 密集流转变的研究,
2.颗粒物质受撞击引起的喷流及沙坑形成机制的研究,
3.微重力下颗粒物质团簇与流变行为的研究,
4.颗粒物对于高聚物及生物大分子的统计行为模拟,
5.波在颗粒物质中的传播,
6.颗粒物质在外场(电磁场、重力场、振动及碰撞)中的相互作用、性质和行为的研究。

培养研究生情况:

已毕业博士生7人,硕士生数十人,在读硕士生1人(合作培养)、博士生2人。

电话:

010-82649089

010-82649348

Email:

mayhou@iphy.ac.cn