Numerical Simulations of Flow and Mass Transfer in the KDP Growth System with Jet Rotating Crystal Method
LI Zhiwei, LI Mingwei, HU Zhitao, YIN Huawei
Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, College of PowerEngineering, Chongqing University, Chongqing 400030
Abstract: A KDP crystal growth method which can improve the supersaturation of pyramidal face by jetting solution toward the apex of pyramid was introduced in this paper. The finite element method and the sliding grid technique were used to simulate the KDP crystal growth process of traditional rotating crystal method and jet rotating crystal method. The surface supersaturation distribution and standard deviation of supersaturation of two different growth methods were presented in this paper. In addition, the effects of different rotational speed, jet velocity and crystal size on supersaturation and standard deviation of supersaturation were analyzed. Compared with the traditional rotating crystal method, the supersaturation of pyramidal face was improved and the surface uniformity was increased through jet-flow rotating crystal method. Increasing the jet velocity improved the supersaturation, while its standard deviation decreased at first and then increased. The increase of rotational rate can improve the supersaturation of pyramidal face and reduce its standard deviation. Furthermore, the crystal size also affected the effect of jet-flow in some degree.
李志巍, 李明伟, 胡志涛, 尹华伟. 喷流转晶法KDP晶体生长系统的流动与传质模拟[J]. CLDB, 2018, 32(8): 1362-1366.
LI Zhiwei, LI Mingwei, HU Zhitao, YIN Huawei. Numerical Simulations of Flow and Mass Transfer in the KDP Growth System with Jet Rotating Crystal Method. Materials Reports, 2018, 32(8): 1362-1366.
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2018, Vol. 32 
