喷流转晶法KDP晶体生长系统的流动与传质模拟

doi:10.11896/j.issn.1005-023X.2018.08.029

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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.

Key words： KDP crystal jet-flow rotating crystal method flow and mass transfer supersaturation standard deviation

Published: 25 April 2018 Online: 2018-05-11

CLC number:

O781

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	Articles by authors
	LI Zhiwei
	LI Mingwei
	HU Zhitao
	YIN Huawei

Cite this article:

LI Zhiwei,LI Mingwei,HU Zhitao, et al. Numerical Simulations of Flow and Mass Transfer in the KDP Growth System with Jet Rotating Crystal Method[J]. Materials Reports, 2018, 32(8): 1362-1366.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.08.029 OR https://www.mater-rep.com/EN/Y2018/V32/I8/1362

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