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Thermocapillary Migration of Deformable Bubbles at Moderate to Large Marangoni Number in Microgravity
Zhao JF; Li ZD; Li HX; Li J
Source PublicationMicrogravity Science and Technology
2010
Volume22Issue:3Pages:295-303
ISSN0938-0108
AbstractUsing the level-set method and the continuum interface model, the axisymmetric thermocapillary migration of gas bubbles in an immiscible bulk liquid with a temperature gradient at moderate to large Marangoni number is simulated numerically. Constant material properties of the two phases are assumed. Steady state of the motion can always be reached. The terminal migration velocity decreases monotonously with the increase of the Marangoni number due to the wrapping of isotherms around the front surface of the bubble. Good agreements with space experimental data and previous theoretical and numerical studies in the literature are evident. Slight deformation of bubble is observed, but no distinct influence on the motion occurs. It is also found that the influence of the convective transport of heat inside bubbles cannot be neglected at finite Marangoni number, while the influence of the convective transport of momentum inside bubbles may be actually negligible.
KeywordThermocapillary Migration Bubble Level-set Method Gas Bubble Thermal-gradient Large Reynolds Low Gravity Motion Surface Drops
DOI10.1007/s12217-010-9193-x
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000281257700006
WOS KeywordGAS BUBBLE ; THERMAL-GRADIENT ; LARGE REYNOLDS ; LOW GRAVITY ; MOTION ; SURFACE ; DROPS
WOS Research AreaEngineering ; Thermodynamics ; Mechanics
WOS SubjectEngineering, Aerospace ; Thermodynamics ; Mechanics
Funding OrganizationNational Natural Science Foundation of China [10972225]
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/43641
Collection国家微重力实验室
Corresponding AuthorZhao JF
Recommended Citation
GB/T 7714
Zhao JF,Li ZD,Li HX,et al. Thermocapillary Migration of Deformable Bubbles at Moderate to Large Marangoni Number in Microgravity[J]. Microgravity Science and Technology,2010,22(3):295-303.
APA Zhao JF,Li ZD,Li HX,&Li J.(2010).Thermocapillary Migration of Deformable Bubbles at Moderate to Large Marangoni Number in Microgravity.Microgravity Science and Technology,22(3),295-303.
MLA Zhao JF,et al."Thermocapillary Migration of Deformable Bubbles at Moderate to Large Marangoni Number in Microgravity".Microgravity Science and Technology 22.3(2010):295-303.
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