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| Numerical simulation on vertical upward gas-liquid annular flow |
| Received:November 08, 2009 Revised:October 15, 2010 |
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| DOI：10.7511/jslx201101018 |
| KeyWord:annular flow two-phase flow CFD numerical simulation entrainment deposition |
| Author | Institution |
| 刘杨 |
大连理工大学 ,海洋能源利用与节能教育部重点实验室,大连 |
| 李维仲 |
大连理工大学 ,海洋能源利用与节能教育部重点实验室,大连 |
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| Abstract: |
| A new film-gas core coupled model is proposed to account for vertical upward developed gas-liquid annular flow in this paper. Present model includes film flow, gas core flow as well as the effect of their interactions. Governing equations are solved by Fluent6.3.26 while the droplet equation, interfacial entrainment and deposition are accounted for by user defined function. Results show that pressure gradient and wall shear stress increase with inlet gas and liquid velocity, while entrainment fraction and film thickness results are not sensitive to inlet liquid velocity. Comparison of simulation results with experimental data implies that present model can well describe upward gas-liquid annular flow. |