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Proceedings of

2nd International Conference on Advances in Civil, Structural and Construction Engineering CSCE 2015

"SINGLE-PHASE AND TWO-PHASE PRESSURE DROPS ACROSS SUDDEN CONTRACTION IN HORIZONTAL RECTANGULAR MINICHANNEL"

AGUS SANTOSO AKIMARO KAWAHARA DAIKI GOTO MICHIO SADATOMI TOMOAKI TAKEHIRA
DOI
10.15224/978-1-63248-059-0-65
Pages
19 - 23
Authors
5
ISBN
978-1-63248-042-2

Abstract: “This paper presents experimental investigations on the effects of liquid properties on pressure drop for both single-phase and two-phase flows through sudden contraction in horizontal rectangular minichannel. In order to know the effects, water and viscoelastic liquid, namely 0.1 wt% polyacrylamide (PAM) aqueous solution are selected as the working liquid, while air as the working gas. Liquid single-phase and air-liquid twophase flow experiments were conducted at room temperature using a horizontal rectangular mini-channel with a sudden contraction. The cross-sectional dimensions of the channel with the height (H), the width (W) and the hydraulic diameter (DH) for the narrow channel are 2.79 mm, 3.09 mm and 2.94 mm, while those for the wide channel are 2.95 mm, 5.98 mm and 3.95 mm. The local pressure upstream and downstream from the contraction were measured with calibrated pressure transducer to determine the pressure drop due to the contraction. As an analysis, the resulting data on”

Keywords: two-phase flow, pressure drops, rectangular minichannel, sudden contraction

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