Numerical Analysis of Flow and Mass Transfer for KDP Crystals Undergoing Two Different Motion Modes During Growth
ZHOU Chuan1,2, LI Mingwei1, YIN Huawei1, CUI Qidong1, HU Zhitao1
1 Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, College of Power Engineering, Chongqing University, Chongqing 400030; 2 SPIC Yuanda EP Science & Technology Branch, Chongqing 401122;
Abstract: Numerical simulations were conducted to model the flow and mass transfer involved in KDP crystals growth via two different motion modes. The features of solution flow around the crystal and the corresponding surface supersaturation distribution of two motion modes were compared and discussed. The effects of crystal size on surface supersaturation fields were analyzed. Simulated results indicated that when the 2D motion method (2D MM) was employed, the crystal surface experience complicate hydrodynamic conditions and its distribution of surface supersaturation was not as regular as that in rotating-crystal method. Additionally, its magnitude of pyramidal face was distinctly larger than that in rotating-crystal method. A considerable fluctuation occurred in surface supersaturation for a cycle in rotating-crystal method. By contrast, the variation of surface supersaturation in unit cycle was small as the crystal was grown by 2D MM. The gradient magnitude of surface supersaturation in 2D MM was less than that in rotating-crystal method for the smaller crystal, but it was larger than rotating-crystal method under the larger crystal.
周川, 李明伟, 尹华伟, 崔启栋, 胡志涛. 不同运动方式KDP单晶生长流动与物质输运数值分析*[J]. 《材料导报》期刊社, 2017, 31(2): 136-141.
ZHOU Chuan, LI Mingwei, YIN Huawei, CUI Qidong, HU Zhitao. Numerical Analysis of Flow and Mass Transfer for KDP Crystals Undergoing Two Different Motion Modes During Growth. Materials Reports, 2017, 31(2): 136-141.
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2017, Vol. 31 
