Detailed flow and force measurements in a rotated triangular tube bundle subjected to two-phase cross-flow

被引：56

作者：

Pettigrew, MJ ^{[1
]}

Zhang, C ^{[1
]}

Mureithi, NW ^{[1
]}

Pamfil, D ^{[1
]}

机构：

[1] Ecole Polytech, Dept Mech Engn, BWC, AECL,NSERC,Chair Fluid Struct Interact, Montreal, PQ H3T 1J4, Canada

来源：

JOURNAL OF FLUIDS AND STRUCTURES | 2005年 / 20卷 / 04期

关键词：

D O I：

10.1016/j.jfluidstructs.2005.02.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Two-phase cross-flow exists in many shell-and-tube heat exchangers. A detailed knowledge of the characteristics of two-phase cross-flow in tube bundles is required to understand and formulate flow-induced vibration parameters such as damping, fluidelastic instability, and random excitation due to turbulence. An experimental program was undertaken with a rotated-triangular array of cylinders subjected to air/water flow to simulate two-phase mixtures. The array is made of relatively large diameter cylinders (38 mm) to allow for detailed two-phase flow measurements between cylinders. Fiber-optic probes were developed to measure local void fraction. Local flow velocities and bubble diameters or characteristic lengths of the two-phase mixture are obtained by using double probes. Both the dynamic lift and drag forces were measured with a strain gauge instrumented cylinder. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：567 / 575

页数：9

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