本文采用有限容积法,对KDP晶体生长过程中溶液的流动和物质输运进行了数值模拟.结果表明:随着入口溶液流动速度的增大,籽晶的上表面因自然对流而引起的抽吸作用减小,表面过饱和度的最小值沿x正向发生右移,其上表面的剪切力先减小后增大.随着入口溶液过饱和度的增大,籽晶上表面剪切力增大.不同尺寸的籽晶表面过饱和度的分布差异较大.籽晶的生长边界层厚度与溶液流动密切相关,入口溶液流动速度越大,厚度越小,但其受入口溶液过饱和度的影响较小.
参考文献
| [1] | Zhou YM.;Derby JJ. .THREE-DIMENSIONAL COMPUTATIONS OF SOLUTION HYDRODYNAMICS DURING THE GROWTH OF POTASSIUM DIHYDROGEN PHOSPHATE .1. SPIN UP AND STEADY ROTATION[J].Journal of Crystal Growth,1997(3/4):497-509. |
| [2] | Yeckel A.;Dennis M.;Derby JJ.;Zhou YM. .Three-dimensional computations of solution hydrodynamics during the growth of potassium dihydrogen phosphate - II. Spin down[J].Journal of Crystal Growth,1998(1/2):206-224. |
| [3] | Brailovskaya VA.;Feoktistova LV.;Zilberberg VV. .Numerical investigation of natural and forced solutal convection above the surface of a growing crystal[J].Journal of Crystal Growth,2000(4):767-771. |
| [4] | Harry F.Robey;Dan Maynes .Numerical simulation of the hydrodynamics and mass transfer in the large scale, rapid growth of KDP crystals. Part 1: Computation of the transient, three-dimensional flow field[J].Journal of Crystal Growth,2001(1/2):263-278. |
| [5] | H.F. Robey .Numerical simulation of the hydrodynamics and mass transfer in the large scale, rapid growth of KDP crystals―2: computation of the mass transfer[J].Journal of Crystal Growth,2003(4):388-403. |
| [6] | Liiri M;Enqvist Y;Kallas J;Aittamaa J .CFD modelling of single crystal growth of potassium dihydrogen phosphate (KDP) from binary water solution at 30 degrees C[J].Journal of Crystal Growth,2006(2):413-423. |
| [7] | 陶文铨.数值传热学[M].西安:西安交通大学出版社,2001:207-231. |
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%