| 瓶装物料冷冻干燥的机理及二维模型 |
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| 引用本文： | 田文清 涂伟萍 杨卓如 陈焕钦. 瓶装物料冷冻干燥的机理及二维模型[J]. 华南理工大学学报(自然科学版), 1997, 0(4): 101-105 |
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| 作者姓名： | 田文清 涂伟萍 杨卓如 陈焕钦 |
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| 作者单位： | 华南理工大学化工学院 |
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| 摘 要： | 基于冷冻干燥机理分析，提出了瓶装物料冷冻干燥的二维数学模型。通过变换将移动界面条件固定(CMI法)后，采用二循环对称分裂法及Godunov差分法的组合对模型进行了求解。此解可以获得物料内部的温度分布及冷冻干燥速率。
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| 关 键 词： | 冷冻干燥 模型 瓶装物料 |
RESEARCH ON THE THEORY AND TWO DIMENSIONAL MATHEMATICAL MODEL OF FREEZE DRYING OF MATERIAL IN A VIAL |
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| Tian Wenqing Tu Weiping Yang Zhuoru Chen Huanqin. RESEARCH ON THE THEORY AND TWO DIMENSIONAL MATHEMATICAL MODEL OF FREEZE DRYING OF MATERIAL IN A VIAL[J]. Journal of South China University of Technology(Natural Science Edition), 1997, 0(4): 101-105 |
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| Authors: | Tian Wenqing Tu Weiping Yang Zhuoru Chen Huanqin |
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| Abstract: | The two dimensional mathematical model of freeze drying of material in a vial has been presented through analysis of theory.After the moving boundary condition fixed by transformation,two cycles symmetrical spitting method combined with Godunov difference method can solve the model.The temperature distribution inside material and freeze drying rate of material can be obtained.The influences of variables such as heat from the sides,the ratio of the radius of vial to the thickness of material and the freeze drying rate are studied.The mathematical model gives results in agreement with experimental results. |
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| Keywords: | freeze drying model material in a vial |
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