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螺旋管內氣液兩相流動阻力特性實驗
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浙江省自然科學基金資助項目（Y1101148）


Resistance Characteristics Experiment of Two-phase Flow in Spiral Pipe
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    摘要:

    以空氣和水為工質,，對螺旋管內氣液兩相流動阻力特性進行了實驗研究,，得到了不同工況條件下螺旋管內阻力數據,，分析了質量流量及干度對管內阻力的影響,，采用回歸分析法建立了螺旋管內摩擦阻力系數關系式,，確立了摩擦阻力與相關物理量的函數關系,，在此基礎上建立了螺旋管內氣液兩相流動摩擦阻力的計算公式,，并用未參加回歸分析的實驗數據驗證了該阻力計算公式,。結果表明,，螺旋管內氣液兩相流摩擦阻力隨干度的增加呈線性增加，隨質量流量的增加呈指數增加,，所建立的管內摩擦阻力計算公式的計算值與實驗值吻合得較好,。

    Abstract:

    he resistance characteristics of air-water flow in spiral pipe were studied experimentally. The influences of mass flow rate and mass quality on pressure drop were analyzed. The empirical formula of the pressure drop was built up based on the method of dimensional analysis and the linear regression with experimental data tested at different conditions. The results showed that the pressure drop increased with the increase of gas-liquid mass flow rate and mass quality. The calculated value of the empirical formula was in good agreement with the experimental data and the formula was accurate enough to calculate the pressure drop of gas-liquid two-phase flow in spiral pipe.

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鄭水華,牟介剛,范文粲,李 嘉.螺旋管內氣液兩相流動阻力特性實驗[J].農業(yè)機械學報,2013,44(11):87-90. Zheng Shuihua, Mu Jiegang, Fan Wencan, Li Jia. Resistance Characteristics Experiment of Two-phase Flow in Spiral Pipe[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(11):87-90.

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  • 在線發(fā)布日期: 2013-11-07
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