Hydrodynamics of two-phase flow in vertical up and down-flow across a horizontal tube bundle

被引：59

作者：

Xu, GP ^{[1
]}

Tso, CP ^{[1
]}

Tou, KW ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore

来源：

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW | 1998年 / 24卷 / 08期

基金：

美国国家航空航天局;

关键词：

two-phase flow; tube bundle; flow patterns; void fraction; pressure drop;

D O I：

10.1016/S0301-9322(98)00035-4

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Flow patterns, void fraction and friction pressure drop measurements were made for an adiabatic, vertical up-and-down, two-phase flow of air-water mixtures across a horizontal in-line, 5 x 20 tube bundle with a pitch-to-diameter ratio of 1.28. The flow patterns in the cross-flow zones were obtained and flow pattern maps were constructed. The data of average void fraction were less than the values predicted by a homogenous flow model and showed a strong mass velocity effect, but were well-correlated in terms of the Martinelli parameter X-tt and liquid-only Froude number Fr-LO. The two-phase friction multiplier data could be well-correlated with the Martinelli parameter. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1317 / 1342

页数：26

共 29 条

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