| 化学气相冷凝合成纳米颗粒反应器：Ⅱ.传热过程模拟 |
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| 引用本文： | 孙志刚,朱以华.化学气相冷凝合成纳米颗粒反应器：Ⅱ.传热过程模拟[J].华东理工大学学报(自然科学版),1998,24(6):692-698. |
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| 作者姓名： | 孙志刚 朱以华 |
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| 作者单位： | 华东理工大学技术化学物理研究所 |
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| 摘 要： | 考虑反应器内高温差带来的流体物性变化，建立了化学气相冷凝反应器内流体流动和传热过程的二维数学模型，采用ＳＩＭＰＬＥＣ算法求解得出了强制对流状态下反应器内速度场和温度场的分布，考察了直管壁面温度，撞击壁面温度，直管出口与撞击面的距离和Ｒｅｙｎｏｌｄｓ准数等参数对反应器内中心轴线上直管出口与撞击面间的温度分布，直管壁面上的直管出口与撞击面间的温度分布以及撞击驻点的Ｎｕｓｓｅｌｔ准烽的影响规律。
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| 关 键 词： | 化学气相冷凝 纳米颗粒 传热过程 反应器 合成 |
Study on the Chemical Vapor Condensation Reactor for Nanometer Powders Preparation II. Simulation of Heat Transfer Process |
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| Sun Zhigang,Zhu Yihua and Li Chunzhong.Study on the Chemical Vapor Condensation Reactor for Nanometer Powders Preparation II. Simulation of Heat Transfer Process[J].Journal of East China University of Science and Technology,1998,24(6):692-698. |
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| Authors: | Sun Zhigang Zhu Yihua and Li Chunzhong |
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| Institution: | Sun Zhigang,Zhu Yihua * and Li Chunzhong |
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| Abstract: | A two dimensional modeling of fluid flow and heat tranfer in the laminar chemical vapor condensation reactor was presented. The effects of variable physical properties were taken into account. The velocity and temperature fields in forced convection are solved by means of the algorithm of SIMPLEC. The temperature distribution between nozzle and substrate, and Nusselt number at the center of the substrate were studied as a function of various parameters such as nozzle wall temperature, substrate temperature, nozzle substrate distance, and Reynolds number. |
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| Keywords: | chemical vapor condensation laminar reactor nanometer powders fluid flow heat transfer numerical simulation |
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