Manipulation of Colloidal Droplets in Space and the Instability of Thermocapillary Convection in Large Prandtl Number Liquid Bridge in Microgravity
doi: 10.11728/cjss2018.05.810
Manipulation of Colloidal Droplets in Space and the Instability of Thermocapillary Convection in Large Prandtl Number Liquid Bridge in Microgravity
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摘要: In 2016 and 2017, SJ-10 and TG-2 satellites were launched. In this short paper, we report recent progress on the studies of manipulation of colloidal droplets and instability of thermocapillary convection in large Prandtl number liquid bridge that based on the space experiments boarding SJ-10 and TG-2 satellites, separately. It was shown that the colloidal droplets can be successfully formed and manipulated in microgravity through the patterned substrates. In another aspect, the coffee-ring effect was observed at the first time in space. For the studies of the instability of thermocapillary convection in large Prandtl number liquid bridge in microgravity, our experiments in TG-2 broadened the way of such kind of study and abundant experimental results are emerging.Abstract: In 2016 and 2017, SJ-10 and TG-2 satellites were launched. In this short paper, we report recent progress on the studies of manipulation of colloidal droplets and instability of thermocapillary convection in large Prandtl number liquid bridge that based on the space experiments boarding SJ-10 and TG-2 satellites, separately. It was shown that the colloidal droplets can be successfully formed and manipulated in microgravity through the patterned substrates. In another aspect, the coffee-ring effect was observed at the first time in space. For the studies of the instability of thermocapillary convection in large Prandtl number liquid bridge in microgravity, our experiments in TG-2 broadened the way of such kind of study and abundant experimental results are emerging.
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Key words:
- Microgravity /
- Colloidal droplet /
- Liquid bridge /
- Thermocapillary convection
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[1] LI Weibin, LAN Ding, SUN Honghui, et al. Drop capturing based on patterned substrate in space[J]. Langmuir, 2018, 34(16):4715 [2] LI Weibin, LAN Ding, and WANG Yuren. Dewettingmediated pattern formation inside the coffee ring[J]. Phys. Rev.:E, 2017, 95:042607 [3] LI Weibin, LAN Ding, SUN Zhibin, et al. Colloidal material box:in-situ observations on colloidal self-assembling and liquid phase transition in space[J]. Microg. Sci. Technol., 2016, 28(2):179-188 [4] WU S, LI W B, SHI F, et al. Observation of colloidal particle deposition during the confined droplet evaporation process[J]. Acta Phys. Sin., 2015, 64(9): [5] SHI F, LI W B, LI J Q, et al. Self-excited oscillation of droplets on confined substrate with instantaneous weightlessness[J]. Acta Phys. Sin., 2015, 64(19): [6] ZHU Peng, ZHOU Bin, DUAN Li, et al. Characteristics of surface oscillation in thermocapillary convection[J]. Exp. Therm. Fluid Sci., 2011, 35:1444 [7] ZHU Peng, DUAN Li, KANG Qi. Transition to chaos in thermocapillary convection[J]. Int. J. Heat Mass Tran., 2013, 57:457 [8] WANG Jia, DUAN Li, KANG Qi. Oscillatory and chaotic buoyant-thermocapillary convection in the large-scale liquid bridge[J]. Chin. Phys. Lett., 2017, 34:074703 [9] WANG Jia, WU Di, DUAN Li, et al. Ground experiment on the instability of buoyant-thermocapillary convection in large-scale liquid bridge with large Prandtl number[J]. Int. J. Heat Mass Tran., 2017, 108:2107 [10] JIANG Huan, DUAN Li, KANG Qi. A peculiar bifurcation transition route of thermocapillary convection in rectangular liquid layers[J]. Exp. Therm. Fluid Sci., 2017, 88:8 [11] JIANG Huan, DUAN Li, KANG Qi. Instabilities of thermocapillarybuoyancy convection in open rectangular liquid layers[J]. Chin. Phys.:B, 2017, 26:114703
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