PREDICTION OF VELOCITY DISTRIBUTION IN PACKED BEDS

程振民; 袁渭康

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PREDICTION OF VELOCITY DISTRIBUTION IN PACKED BEDS

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- PREDICTION OF VELOCITY DISTRIBUTION IN PACKED BEDS
- CIESC Journal Issue 5, (1993)
- 作者机构：
  
  华东化工学院联合化学反应工程研究所,华东化工学院联合化学反应工程研究所上海200237,上海,200237
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 October 1993，
  
  Published：25 October 1993
- 稿件说明：
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程振民, 袁渭康. PREDICTION OF VELOCITY DISTRIBUTION IN PACKED BEDS[J]. CIESC Journal, 1993, (5).
DOI：

程振民, 袁渭康. PREDICTION OF VELOCITY DISTRIBUTION IN PACKED BEDS[J]. CIESC Journal, 1993, (5). DOI：

摘要

Smith等早在闪53年就作了填充床中速度什布的实验研究［’］，但至今尚未建立关于速度分布的普遍化关联式。作为填充床基本件质之一的速度分布，对十正确认识床内的传热传质过程以及建立固定床反应器的模型都具有罩要意义。研究表明1刁，反应器流动模型考虑了速度分布等因素的径向变化，比用平推流模型能更好地预测实验现象。随着对速度分布和空隙率等认识的深入，反应器流动模型越来越真实。Stephenson＊报道了他们的激光测速实验，使实验研究方法趋于成熟，但理论顶测问题仍显得落后。近10年未一直采用修千的Brinkman方程进行预刎叫，们结果与实验现象的偏羔太大。

Abstract

A physical model called parallel-tube model based on the analogy between fluid flow in a packed bed and in an empty pipe is established and a method for the velocity prediction is pressented. It is found that the prediction is close to the experimental study and is better than those methods developed previously.

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