物理化学学报 >> 2000, Vol. 16 >> Issue (03): 193-195.doi: 10.3866/PKU.WHXB20000301

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重力对异向聚集过程影响的探讨

孙祉伟, 乔润龙   

  1. 中国科学院力学研究所，国家微重力实验室，北京 100080
  • 收稿日期:1999-10-22 修回日期:1999-12-16 发布日期:2000-03-15
  • 通讯作者: 孙祉伟

Gravitational Influence on the Perikinetic Coagulation Process

Sun Zhi-Wei, Qiao Run-Long   

  1. National Microgravity Laboratory,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100080
  • Received:1999-10-22 Revised:1999-12-16 Published:2000-03-15
  • Contact: Sun Zhi-Wei

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关键词: 分散体系, 异向聚集, 密度匹配, 自然对流, 微重力

Abstract:

An experimental set up was designed to separately test how sedimentation and convection driven flows affect the perikinetic coagulation process in a ground based experiment. The experiment showed that the sedimentation slightly accelerates the coagulation process and weak free convection driven flows do not noticeably contribute to coagulation for 2 μm particles' dispersion.

Key words: Dispersions, Perikinetic coagulation, Density match, Free convection, Microgravity