对于气液自由界面上存在相变(蒸发、沸腾或凝结)的情况,由于此时不仅物性分布是不连续的,速度场也发生了不连续,这无论对于捕捉或追踪自由界面的算法本身还是流场的求解都带来了一定的困难.本文提出一种基于VOF方法的计算带相变的自由界面的算法,对这种情况下的关键问题一速度场的不连续性给出了解决方法.并用编制的二维程序计算了水平壁面上的膜态沸腾,并将计算结果与理论公式进行了比较.
参考文献
| [1] | Scardovelli Ruben;Zaleski Stephane .Direct numerical simulation of free-surface and interfacial flow[J].Annual Review of Fluid Mechanics,1999(0):567-603. |
| [2] | Juric D;G Tryggvason .Computations of Boiling Flows[J].International Journal of Multiphase Flow,1997,24(03):387-410. |
| [3] | Welch S W J;Wilson J .A Volume of Fluid Based Method for Fluid Flows with Phase Change[J].Journal of Computational Physics,2000,160(02):662-682. |
| [4] | Hirt C W;Nichols B D .Volume of Fluid(VOF) Method for Dynamics of Free Boundaries[J].Journal of Computational Physics,1981,39(01):201-225. |
| [5] | Ashgriz N;Poo J Y .FLAIR:Flux Line-Segment Model for Advection and Interface Reconstruction[J].Journal of Computational Physics,1991,93(02):449-468. |
| [6] | Youngs D L.Time-Dependent Multi-Material Flow with Large Fluid Distortion[M].New York:Academic Press,Inc,1982:273-285. |
| [7] | Yang M;Tao Wen-Quan .Numerical Study of Natural Convection Heat Transfer in a Cylindrical Envelope with Internal Concentric Slotted Hollow Cylinder[J].Numerical Heat Transfer Part A,1992,22(03):289-305. |
| [8] | Brackbill J;Kothe D B;Zemach C .A Continuum Method for Modeling Surface Tension[J].Journal of Computational Physics,1992,100(02):335-354. |
| [9] | 徐济鋆;贾斗南.沸腾传热和汽液两相流[M].北京:原子能出版社,1993:439-441. |
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%