Experimental investigation on thermocapillary drop migration at large Marangoni number in reduced gravity
- PMID: 15837493
- DOI: 10.1016/j.jcis.2004.12.023
Experimental investigation on thermocapillary drop migration at large Marangoni number in reduced gravity
Abstract
Results from a space experiment on thermocapillary drop migration conducted on board the Chinese spacecraft ShenZhou-4 are presented in this paper. In the experiment, isolated drops of Fluorinert liquid moved in a matrix liquid of 5cst silicone oil at values of the Marangoni numbers (Ma) ranging up to 5500 and the interferometry images showed the temperature distribution inside the test cell. The drop migration velocity was measured. The experimental results show that the scaled drop migration velocity V/V(YGB) obviously decreases with Ma increasing the values up to 5500. The space experimental results are also compared with those from our early experiments, other space experiments, and some theoretical predictions.
Similar articles
-
Thermocapillarity in Microfluidics-A Review.Micromachines (Basel). 2016 Jan 21;7(1):13. doi: 10.3390/mi7010013. Micromachines (Basel). 2016. PMID: 30407386 Free PMC article. Review.
-
Experimental investigation on bubble coalescence under nonuniform temperature distribution in reduced gravity.J Colloid Interface Sci. 2007 Jun 15;310(2):546-9. doi: 10.1016/j.jcis.2007.02.020. Epub 2007 Feb 13. J Colloid Interface Sci. 2007. PMID: 17349651
-
Thermocapillary motion of a liquid drop on a horizontal solid surface.Langmuir. 2008 May 6;24(9):5185-93. doi: 10.1021/la7036839. Epub 2008 Apr 10. Langmuir. 2008. PMID: 18399689
-
Numerical investigation of bubble-induced Marangoni convection.Ann N Y Acad Sci. 2009 Apr;1161:304-20. doi: 10.1111/j.1749-6632.2008.04332.x. Ann N Y Acad Sci. 2009. PMID: 19426328
-
On the extent of surface stagnation produced jointly by insoluble surfactant and thermocapillary flow.Adv Colloid Interface Sci. 2018 May;255:10-17. doi: 10.1016/j.cis.2017.08.010. Epub 2017 Sep 15. Adv Colloid Interface Sci. 2018. PMID: 28939013 Review.
Cited by
-
Academician Wen-Rui Hu - Eminent Pioneer and Prominent Leader of Microgravity Science in China.Microgravity Sci Technol. 2022;34(2):19. doi: 10.1007/s12217-022-09934-7. Epub 2022 Mar 15. Microgravity Sci Technol. 2022. PMID: 35308643 Free PMC article.
-
Thermocapillarity in Microfluidics-A Review.Micromachines (Basel). 2016 Jan 21;7(1):13. doi: 10.3390/mi7010013. Micromachines (Basel). 2016. PMID: 30407386 Free PMC article. Review.
LinkOut - more resources
Full Text Sources