pressure drop – ราชบัณฑิตยสภา https://royalsociety.go.th Royal Society of Thailand Sat, 31 Dec 2022 12:14:43 +0000 en-GB hourly 1 https://wordpress.org/?v=6.9.1 https://royalsociety.go.th/wp-content/uploads/2025/10/cropped-logo-rst-1-Grayscale-150x150.jpg pressure drop – ราชบัณฑิตยสภา https://royalsociety.go.th 32 32 An Evaluation of Viscosity Models for the Prediction of the Two-phase Pressure Drop in Two-phase Flow Through A Circular Micro-channel https://royalsociety.go.th/an-evaluation-of-viscosity-models-for-the-prediction-of-the-two-phase-pressure-drop-in-two-phase-flow-through-a-circular-micro-channel/ Tue, 30 Nov 2010 23:00:05 +0000 https://royalsociety.go.th/?p=1451 Sira Saisorn1, 2
and Somchai Wongwises2, 3
1 Department of Mechanical Engineering, King Mongkut’s Institute of
Technology Ladkrabang Chumphon Campus, Thailand
2 Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab (FUTURE)
Department of Mechanical Engineering, King Mongkut’s University of
Technology Thonburi, Thailand
3 Fellow of the Royal Institute, Academy of Science

Abstract

Adiabatic two-phase air-water flow experiments are conducted in this study. A fused silica channel, 120 mm long, with a diameter of 0.22 mm is used as the test section. The void fraction data obtained by image analysis correspond with the Amand-type correlation. The experimental frictional pressure drop data are compared with the homogeneous flow predictions. Several well-known twophase viscosity models are evaluated in order to address the appropriate methods among them for application to micro-channels.

Key words: two-phase flow, micro-channel, void fraction, pressure drop

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