| Thermocapillary Migration of Deformable Bubbles at Moderate to Large Marangoni Number in Microgravity | |
Zhao JF ; Li ZD; Li HX; Li J
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| Source Publication | Microgravity Science and Technology
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| 2010 | |
| Volume | 22Issue:3Pages:295-303 |
| ISSN | 0938-0108 |
| Abstract | Using 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. |
| Keyword | Thermocapillary Migration Bubble Level-set Method Gas Bubble Thermal-gradient Large Reynolds Low Gravity Motion Surface Drops |
| DOI | 10.1007/s12217-010-9193-x |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000281257700006 |
| WOS Keyword | GAS BUBBLE ; THERMAL-GRADIENT ; LARGE REYNOLDS ; LOW GRAVITY ; MOTION ; SURFACE ; DROPS |
| WOS Research Area | Engineering ; Thermodynamics ; Mechanics |
| WOS Subject | Engineering, Aerospace ; Thermodynamics ; Mechanics |
| Funding Organization | National Natural Science Foundation of China [10972225] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/43641 |
| Collection | 微重力重点实验室 |
| Corresponding Author | Zhao 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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