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无机材料学报

无机材料学报

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高温KNbO3熔液内速度场和温度场的实验研究及其数字模拟分析

刘照华; 金蔚青; 潘志雷; 梁歆桉; 陈刚毅   

  1. 中国科学院上海硅酸盐研究所 上海 200050
  • 收稿日期:2001-11-05 修回日期:2001-12-10 出版日期:2002-11-20 网络出版日期:2002-11-20

Experiment and Numerical Simulation of Velocity and Temperature Fields in KNbO3 Solution

LIU Zhao-Hua; JIN Wei-Qing; PAN Zhi-Lei; LIANG Xin-An; CHEN Gang-Yi   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:2001-11-05 Revised:2001-12-10 Published:2002-11-20 Online:2002-11-20

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摘要： 在重力对流作用的情况下,本文对实验所用的铂金坩埚中的高温熔液内的速度分布和温度分布进行了数字模拟研究,结果表明:借助实验边界条件和Boussinesq近似,铌酸钾高温熔液中的速度分布及温度分布的数字模拟结果与实验结果基本吻合,流体运动的轨迹与实验示踪粒子轨迹也基本一致.

关键词: 高温熔液, 数字模拟, 速度场, 温度场

Abstract: Velocity field and temperature field in the high temperature solution in a loop-like Pt crucible were simulated
numerically by using the commercial computational code under gravity conditions. The results indicate that, based on the experimental boundary conditions and
the Boussinesq approximation, velocity field and temperature field with the numerical simulation basically agree with the experimental data, meantime,
the fluid flow trace is also similar to the phenomena observed with the traced particles of Na2CO3 in the high temperature oxide solution.

Key words: high temperature solution, numerical simulation, velocity field, temperature field

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