中国物理B ›› 2013, Vol. 22 ›› Issue (9): 98104-098104.doi: 10.1088/1674-1056/22/9/098104

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Interface evolution of a particle in a supersaturated solution affected by a far-field uniform flow

陈明文, 王自东   

  1. School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • 收稿日期:2012-08-09 修回日期:2013-03-29 出版日期:2013-07-26 发布日期:2013-07-26
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 10972030), the Fundamental Research Funds for the Central University, China (Grant No. FRF-BR-11-034B), and the Overseas Distinguished Scholar Program of the Ministry of Education, China (Grant No. MS2010bjkj005).

Interface evolution of a particle in a supersaturated solution affected by a far-field uniform flow

Chen Ming-Wen (陈明文), Wang Zi-Dong (王自东)   

  1. School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2012-08-09 Revised:2013-03-29 Online:2013-07-26 Published:2013-07-26
  • Contact: Chen Ming-Wen, Wang Zi-Dong E-mail:chenmw@ustb.edu.cn; wangzd@mater.ustb.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 10972030), the Fundamental Research Funds for the Central University, China (Grant No. FRF-BR-11-034B), and the Overseas Distinguished Scholar Program of the Ministry of Education, China (Grant No. MS2010bjkj005).

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摘要： The effect of far-field uniform flow on the morphological evolution of a spherical particle in a supersaturated solution affected by a far-field uniform flow is studied by using the matched asymptotic expansion method. The analytical solution for the interface shape, concentration field, and interface velocity of the particle growth shows that the convection induced by the far-field uniform flow facilitates the growth of the spherical particle, the upstream flow imposed on the particle enhances the growth velocity of the interface when the flow comes in, the downstream flow lowers the growth velocity of the surface when the flow goes out, and the interface morphology evolves into a peach-like shape.

关键词: convection, interfaces, growth models, crystal morphology

Abstract: The effect of far-field uniform flow on the morphological evolution of a spherical particle in a supersaturated solution affected by a far-field uniform flow is studied by using the matched asymptotic expansion method. The analytical solution for the interface shape, concentration field, and interface velocity of the particle growth shows that the convection induced by the far-field uniform flow facilitates the growth of the spherical particle, the upstream flow imposed on the particle enhances the growth velocity of the interface when the flow comes in, the downstream flow lowers the growth velocity of the surface when the flow goes out, and the interface morphology evolves into a peach-like shape.

Key words: convection, interfaces, growth models, crystal morphology

中图分类号:  (Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)

  • 81.10.Aj
81.30.Fb (Solidification) 81.10.Dn (Growth from solutions)