A Technique for Measuring Dynamic Liquid Film Thickness

Gu Datian and Zhu Jiahua(Department of Chemical Engineering; Chengdu University of Science and Technology)

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A Technique for Measuring Dynamic Liquid Film Thickness

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- A Technique for Measuring Dynamic Liquid Film Thickness
- CIESC Journal Issue 3, (1988)
- 作者机构：
  
  成都科技大学化工系,成都科技大学化工系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 June 1988，
  
  Published：25 June 1988
- 稿件说明：
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Gu Datian and Zhu Jiahua(Department of Chemical Engineering, Chengdu University of Science and Technology). A Technique for Measuring Dynamic Liquid Film Thickness[J]. CIESC Journal, 1988, (3).
DOI：

Gu Datian and Zhu Jiahua(Department of Chemical Engineering, Chengdu University of Science and Technology). A Technique for Measuring Dynamic Liquid Film Thickness[J]. CIESC Journal, 1988, (3). DOI：

摘要

本文介绍了一种灵敏度高、适用性强的动态液膜厚度测试装置;能连续测定动态液膜厚度的波动曲线

液膜厚度与它所对应的记录曲线的振幅高度成正比

利用这一关系使该装置的标定方法简单且测量精度较高

在1mm左右的测量范围内其误差不大于2.2%

利用该装置测量气-液环状两相流的液膜厚度

取得了较好的结果.

Abstract

A sensitive apparatus for measuring the thickness of dynamic liquid film under various conditions is being presented. The fluctuation curve of film thickness can be determined continuously by employing this apparatus. The film thickness is proportional to the height of its amplitude generated on the fluctuation curve. This would provide simpler calibration and more accurate measurement. The error is less than 2.2% within the measurement range of around 1 mm. A study on annular gas-liquid two-phase flow

using this apparatus as a measuring means

is being chosen as an example to prove its validity.

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