新型正交波纹板流体力学性能CFD模拟

doi:10.11949/j.issn.0438-1157.20150409

化工学报 ›› 2015, Vol. 66 ›› Issue (12): 4743-4750.DOI: 10.11949/j.issn.0438-1157.20150409

新型正交波纹板流体力学性能CFD模拟

王华金¹, 谢宛妮², 孙永利¹, 杨娜¹, 李治洁¹

1 天津大学化工学院, 天津 300072;
2 天津大学求是学部, 天津 300072

收稿日期:2015-04-01 修回日期:2015-09-04 出版日期:2015-12-05 发布日期:2015-12-05
通讯作者: 孙永利

CFD simulation of hydrodynamics of orthogonal wave type tray

WANG Huajin¹, XIE Wanni², SUN Yongli¹, YANG Na¹, LI Zhijie¹

1 School of Chemical Engineering, Tianjin University, Tianjin 300072, China;
2 Qiushi Honors College, Tianjin University, Tianjin 300072, China

Received:2015-04-01 Revised:2015-09-04 Online:2015-12-05 Published:2015-12-05

摘要/Abstract

摘要：

介绍一种新型穿流塔板——正交波纹板。以欧拉-欧拉两相流模型为基础,建立了正交波纹板上气液两相流场的三维数学模型。CFD模型中主要考虑了气液两相间的曳力作用,相间动量传递源相采用Krishna计算方法。以清液层高度为指标,对CFD模型的可靠性进行了验证。在不同气液负荷下,对正交波纹板的压降、板上液相速度分布及塔内气液分布状况等流体力学性能进行了研究,并与淋降筛板进行对比,结果表明正交波纹板具有更高的操作弹性和更好的操作稳定性。

关键词: 正交波纹板, 流体力学, CFD, 两相流, 穿流塔板

Abstract:

The orthogonal wave type (OWT) tray, a new type of dual flow tray, was developed. A 3D transient computational fluid dynamics model in the Eulerian-Eulerian framework is developed to predict the hydrodynamics of OWT tray. Drag force is mainly considered as the interphase momentum exchange term and calculated using the Krishna correlation. Simulated clear liquid height is in good agreement with the experimental value. The hydrodynamics including pressure drop, liquid velocity and gas-liquid distribution under various gas and liquid rates are investigated. Comparison with sieve tray without downcomer shows that OWT tray has an improved turn down ratio and stability.

Key words: orthogonal wave type tray, hydrodynamics, CFD, two-phase flow, dual flow tray

中图分类号:

TQ028.8

王华金, 谢宛妮, 孙永利, 杨娜, 李治洁. 新型正交波纹板流体力学性能CFD模拟[J]. 化工学报, 2015, 66(12): 4743-4750.

WANG Huajin, XIE Wanni, SUN Yongli, YANG Na, LI Zhijie. CFD simulation of hydrodynamics of orthogonal wave type tray[J]. CIESC Journal, 2015, 66(12): 4743-4750.

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新型正交波纹板流体力学性能CFD模拟

CFD simulation of hydrodynamics of orthogonal wave type tray

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