Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column

›› 2008, Vol. 16 ›› Issue (4): 541-546.

Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column

王良华, 崔觉剑, 姚克俭

State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China

收稿日期:2007-04-10 修回日期:2008-02-27 出版日期:2008-08-28 发布日期:2008-08-28
通讯作者: YAO Kejian, E-mail: yaokj@zjut.edu.cn
基金资助:
the Natural Science Foundation of Zhejiang Province(Y404052)

Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column

WANG Lianghua, CUI Juejian, YAO Kejian

State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China

Received:2007-04-10 Revised:2008-02-27 Online:2008-08-28 Published:2008-08-28
Supported by:
the Natural Science Foundation of Zhejiang Province(Y404052)

摘要/Abstract

摘要： A three-dimensional computational fluid dynamics (CFD) model for gas flow through a serrated valve tray was presented. The flow field, as well as the dry-pressure drop of the valve under the full-opening condition was simulated based on the proposed model by using FLUENT 6.0 software. Compared with the values of dry-pressure drop in different turbulent models, the simulated results using RNG k-ε model are in reasonable agreement with experimental data, indicating that RNG k-ε model is suitable in simulating gas flow through the serrated valve tray. Then the CFD model combining RNG k-ε model was used to study the three-dimensional gas flow through the considered serrated valve tray. The simulated results showed that various eddies existed on the serrated valve tray, and both the eddy and the non-eddy areas were nearly equal. The existence of addendum can decrease the eddy area caused by gas passing through the lateral outlet slots. The size of eddies can be reduced by optimizing the distance between valves.

关键词: serrated valve, numerical simulation, pressure drop, RNG k-ε turbulent model

Abstract: A three-dimensional computational fluid dynamics (CFD) model for gas flow through a serrated valve tray was presented. The flow field, as well as the dry-pressure drop of the valve under the full-opening condition was simulated based on the proposed model by using FLUENT 6.0 software. Compared with the values of dry-pressure drop in different turbulent models, the simulated results using RNG k-ε model are in reasonable agreement with experimental data, indicating that RNG k-ε model is suitable in simulating gas flow through the serrated valve tray. Then the CFD model combining RNG k-ε model was used to study the three-dimensional gas flow through the considered serrated valve tray. The simulated results showed that various eddies existed on the serrated valve tray, and both the eddy and the non-eddy areas were nearly equal. The existence of addendum can decrease the eddy area caused by gas passing through the lateral outlet slots. The size of eddies can be reduced by optimizing the distance between valves.

Key words: serrated valve, numerical simulation, pressure drop, RNG k-ε turbulent model

王良华, 崔觉剑, 姚克俭. Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column[J]. , 2008, 16(4): 541-546.

WANG Lianghua, CUI Juejian, YAO Kejian. Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column[J]. , 2008, 16(4): 541-546.

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Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column

Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column

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