Numerical simulation of horizontal tube bundle falling film flow pattern transformation

Jingdong Chen, Ruihang Zhang and Runping Niu

Renewable Energy, 2015, vol. 73, issue C, 62-68

Abstract: It is important to study the falling-film pattern of a horizontal tube bundle in order to set up a heat and mass transfer model accurately. The falling-film pattern of a horizontal tube bundle is simulated in this paper. The technique is based on computational flow dynamics (CFD) for the two-phase flow of gas and water. The experimental results were used to validate the mathematical model. It indicates that the simulation results accord with experimental data well. The simulated results show that the flow pattern varies with different flow rates. Under the different flow rates, it observes the droplet, droplet-columnar, columnar, columnar-sheet and sheet flow patterns. The critical value is 0.0125 kg/s between droplet and columnar, and the critical value is 0.02 kg/s between columnar and sheet.

Keywords: Horizontal tube bundle; Falling film; Flow pattern (search for similar items in EconPapers)
Date: 2015
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:73:y:2015:i:c:p:62-68

DOI: 10.1016/j.renene.2014.08.007

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