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首页> 外文期刊>International Journal of Heat and Mass Transfer >ANALYSIS OF THE ABSORPTION PROCESS ON A HORIZONTAL TUBE USING NAVIER-STOKES EQUATIONS WITH SURFACE-TENSION EFFECTS
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ANALYSIS OF THE ABSORPTION PROCESS ON A HORIZONTAL TUBE USING NAVIER-STOKES EQUATIONS WITH SURFACE-TENSION EFFECTS

机译：基于表面张力效应的纳维斯托克斯方程分析水平管的吸收过程

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摘要

A Navier-Stokes procedure has been developed to investigate the absorption phenomena about the free-falling film flow on a horizontal tube. The fully elliptic equations of momentum, temperature and concentration are solved by using the SIMPLER algorithm, which incorporates the QUICK scheme and the incomplete Cholesky conjugate gradient method for accuracy and efficiency. Taking account of the surface-tension effects, the free-surface location is carefully traced by the MAC method in a time-accurate manner. The details of the flow and heat/mass transfer phenomena, such as the free-surface location, the streamlines, the formation of reciculating region and the rate of absorption, are seen to be well captured. The results are presented for various flow rates; the surface tension is found to play an important role in dictating the flow field especially when the flow rate is low.
机译：已经开发了Navier-Stokes程序来研究有关水平管上自由下落的薄膜流的吸收现象。使用SIMPLER算法求解动量，温度和浓度的完全椭圆方程，该算法结合了QUICK方案和不完整的Cholesky共轭梯度法，以提高准确性和效率。考虑到表面张力效应，通过MAC方法以时间精确的方式仔细跟踪了自由表面的位置。可以很好地捕捉到流动和热/质量传递现象的细节，例如自由表面的位置，流线，成网区域的形成和吸收率。给出了各种流速的结果；发现表面张力在决定流场方面起着重要作用，尤其是在流速较低时。

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