基于Level Set方法建立了双层流体热毛细对流的数学模型,通过变密度二阶投影法求解控制方程,C-N隐式技术用于扩散项更新,三阶龙格库塔技术用于对流项的更新,采用连续表面张力模型(CSF)模拟Marangoni效应.三维数值模拟了微重力环境下双层流体系统中交界面变形的热毛细对流,结果显示,在.Marangoni效应的作用下,交界面在热端凸起,在冷端凹陷;随着Marangoni数增大,双层流体交界面的变形率随之增大,对流强度也随之增大;交界面与壁面的接触条件会影响热毛细对流的流场和温度场.
参考文献
| [1] | Shi WY;Imaishi N .Hydrothermal waves in differentially heated shallow annular pools of silicone oil[J].Journal of Crystal Growth,2006(1):280-291. |
| [2] | Liu QS.;Velarde MG.;Roux B. .Thermocapillary convection in two-layer systems[J].International Journal of Heat and Mass Transfer,1998(11):1499-1511. |
| [3] | Hamed M.;Floryan JM. .Marangoni convection. Part 1. A cavity with differentially heated sidewalls[J].Journal of Fluid Mechanics,2000(0):79-110. |
| [4] | Saghir MZ.;Raman R.;Abbaschian R. .NUMERICAL ANALYSIS OF THERMOCAPILLARY CONVECTION IN AXISYMMETRIC LIQUID ENCAPSULATED INBI[J].Journal of Crystal Growth,1996(1):110-117. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%