TITLE

Air-water two-phase flow in a 3-mm horizontal tube

AUTHOR(S)
Chen, Ing Youn; Chang, Yu-Juei; Wang, Chi-Chung
PUB. DATE
January 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 504 Issue 1, p729
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Two-phase flow pattern and friction characteristics for air-water flow in a 3.17 mm smooth tube are reported in this study. The range of air-water mass flux is between 50 to 700 kg/m2·s and gas quality is between 0.0001 to 0.9. The pressure drop data are analyzed using the concept of the two-phase frictional multipliers and the Martinelli parameter. Experimental data show that the two-phase friction multipliers are strongly related to the flow pattern. Taitel & Dukler flow regime map fails to predict the stratified flow pattern data. Their transition lines between annular-wavy and annular-intermittent give fair agreement with data. A modified correlation from Klimenko and Fyodoros criterion is able to distinguish the annular and stratified data. For two-phase flow in small tubes, the effect of surface tension force should be significantly present as compared to gravitational force. The tested empirical frictional correlations couldn’t predict the pressure drop in small tubes for various working fluids. It is suggested to correlate a reliable frictional multiplier for small horizontal tubes from a large database of various working fluids, and to develop the flow pattern dependent models for the prediction of two-phase pressure drop in small tubes. © 2000 American Institute of Physics.
ACCESSION #
5985046

 

Related Articles

  • Dynamics of axisymmetric core-annular flow in a straight tube. I. The more viscous fluid in the core, bamboo waves. Kouris, Charalampos; Tsamopoulos, John // Physics of Fluids;Apr2001, Vol. 13 Issue 4, p841 

    Nonlinear dynamics of the concentric, two-phase flow of two immiscible fluids in a circular tube is studied. The viscosity of the fluid around the axis of symmetry of the tube is larger than the viscosity of the fluid that surrounds it and gravity acts against the applied pressure gradient. A...

  • The vortex tube as a classic thermodynamic refrigeration cycle. Ahlborn, Boye K.; Gordon, Jeffrey M. // Journal of Applied Physics;9/15/2000, Vol. 88 Issue 6, p3645 

    Demonstrates that the thermal and fluid dynamics of the vortex tube are characteristics of a classic cooling cycle. Quantification of the performance of the vortex tube as a thermodynamic machine; Development of simple analytic formulas for the temperature and pressure profiles within the tube.

  • NMR imaging of velocity profiles and velocity distributios in bead packs. Kutsovsky, Y.E.; Scriven, L.E.; Davis, H.T.; Hammer, B.E. // Physics of Fluids;Apr96, Vol. 8 Issue 4, p863 

    Measures spatially resolved velocity profiles and spatially nonresolved velocity distributions of steady flow in a tube and bead packs. Measurement of velocity distributions; Calculation of velocity histogram from spatially resolved velocity phase encoded images; Axial velocity profiles.

  • Cross-linking of two antiparallel vortex tubes. Melander, M. V.; Hussain, F. // Physics of Fluids A;Apr89, Vol. 1 Issue 4, p633 

    The detailed mechanisms in vortex cross-linking are unveiled by adequately resolved, direct numerical simulation of two viscous vortex tubes. There are three characteristic phases: (i) inviscid induction followed by core flattening and stretching; (ii) bridging of the two vortices by...

  • Fragmentation of stretched liquid ligaments. Marmottant, Philippe; Villermaux, Emmanuel // Physics of Fluids;Aug2004, Vol. 16 Issue 8, p2732 

    The dynamics and fragmentation of stretched liquid ligaments is investigated. The ligaments are produced by the withdrawal of a tube initially dipping at a free surface. Time resolved high speed motion experiments reveal two different elongation behaviors, depending on the nondimensional number...

  • Experimental validation of a Richtmyer–Meshkov scaling law over large density ratio and shock strength ranges. Motl, Bradley; Oakley, Jason; Ranjan, Devesh; Weber, Chris; Anderson, Mark; Bonazza, Riccardo // Physics of Fluids;Dec2009, Vol. 21 Issue 12, p126102 

    A universal scaling law for the Richtmyer–Meshkov instability is validated with experimental results covering a wide range of density ratios and shock strengths. These results include the first membraneless, gas-phase, interface experiments for A>0.5 and M>1.5. The shock-accelerated,...

  • Small Disturbance Diagnostic Inside The Vortex Tube With A Square Cross-Section. Kabardinu, I. K.; Meledin, V. G.; Yavorskiy, N. I.; Pavlov, V. A.; Pravdina, M. H.; Kulikov, D. V.; Rahmanov, V. V. // AIP Conference Proceedings;2016, Vol. 1770 Issue 1, p1 

    The vortex effect in Ranque-Hilch vortex tube was investigated. Being discovered by G.J. Ranquefl] in 1928, the effect still has no adequate generally accepted physical explanation. One of the reasons is connected with the lack of reliable experimental data describing velocity and temperature...

  • Pulsating Flows of Inelastic Fluids in Anisotropic Porous Viscoelastic Tubes. Gueraoui, K.; Taibi, M.; Ghouli, A.; Mrabti, A.; Zeggwagh, G.; Haddad, Y. M. // International Review of Mechanical Engineering;May2008, Vol. 2 Issue 3, p506 

    A theoretical study concerning pulsatile flow of an inelastic fluid within anisotropic porous viscoelastic pipes is presented. The objective is to investigate the effects of porosity, transversal rotation and viscoelasticity of pipe wall material for a generalized Bingham fluid An implicit...

  • Teaching fluid dynamics with the ball-in-tube device. Hillard, J.; Branch, K.; Butterfield, A. // International Journal of Mechanical Engineering Education;Jan2015, Vol. 43 Issue 1, p15 

    Engineering courses strive to equip students with the ability to tackle real-world problems. Often, a few simple experiments are used to illustrate the theoretical principles behind undergraduate-level fluid dynamics. In this work, we demonstrate the use of the traditional...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics