摘要Pure liquid--liquid diffusion driven by concentration gradients is hard to study in a normal gravity environment since convection and sedimentation also contribute to the mass transfer process. We employ a Mach--Zehnder interferometer to monitor the mass transfer process of a water droplet in EAFP protein solution under microgravity condition provided by the Satellite Shi Jian No 8. A series of the evolution charts of mass distribution during the diffusion process of the liquid droplet are presented and the relevant diffusion coefficient is determined.
Abstract：Pure liquid--liquid diffusion driven by concentration gradients is hard to study in a normal gravity environment since convection and sedimentation also contribute to the mass transfer process. We employ a Mach--Zehnder interferometer to monitor the mass transfer process of a water droplet in EAFP protein solution under microgravity condition provided by the Satellite Shi Jian No 8. A series of the evolution charts of mass distribution during the diffusion process of the liquid droplet are presented and the relevant diffusion coefficient is determined.
DUAN Li;SUN Zhi-Wei;KANG Qi;CUI Hai-Liang;LIN Hai;HU Liang;XU Sheng-Hua;LI Gen-Pei. Observation of Diffusion Process of a Water Droplet Immersed in Protein Solution in Microgravity[J]. 中国物理快报, 2007, 24(12): 3358-3361.
DUAN Li, SUN Zhi-Wei, KANG Qi, CUI Hai-Liang, LIN Hai, HU Liang, XU Sheng-Hua, LI Gen-Pei. Observation of Diffusion Process of a Water Droplet Immersed in Protein Solution in Microgravity. Chin. Phys. Lett., 2007, 24(12): 3358-3361.
[1] Bowen W R, Liang Y and Williams P M 2000 Chem. Eng. Sci. 55 2359 [2] Pertler M, Blass E and Stevens G W 1996 AIChE J. 42 910 [3] He C H 1998 Indian Eng. Chem. Res. 34 2148 [4] Lee Y E 1991 J. Chem. Eng. Data 36 240 [5] Eaton P and Akgerman A 1997 Indian Eng. Chem. Res. 36 923 [6] Fei W Y and Bart H J 2001 Chem. Eng. 40 531 [7] Elcloe M 2000 Opt. Eng. 39 744 [8] Laurence R and Jacques B 2002 Coll. Surf. B:Biointerfaces 25 99 [9] Rashidnia N and Balasubramaniam R 2004 Exp. Fluids 36 619
2007, Vol. 24 
