This paper describes a new discrimination technique of flow regime (flow pattern) for gas—liquid two-phase flow in magnetic fluid. The proposed technique can identify the flow regime with simple devices by exploiting the wave patterns of signals obtained by electromagnetic induction. This utilization achieves a mechanically non-contact measuring method for objective fluids. In this study, verification experiments for practical measurement were conducted in upward gas—liquid two-phase flow. The results of the experiments have verified that the proposed measuring technique is useful as a method for flow regime discrimination.
RosensweigR. E.Ferrohydrodynamics1985, pp. 13–15126–131132–176 (Cambridge University PressNew York).
2.
OkuboM.IshimotoJ.KamiyamaS.Basic study on an energy conversion system using gas-liquid two-phase flows of magnetic fluid. ASME FED1994194105–110.
3.
ShuchiS.MoriT.YamaguchiH.Flow boiling heat transfer of binary mixed magnetic fluid. IEEE Trans. Magn.2002383234–3236.
4.
IshimotoJ.KamiyamaS.Numerical study of cavitating flow of magnetic fluid in a vertical converging-diverging nozzle, J. Magn. Magn. Mater.2005289260–263.
5.
WeismanJ.DuncanD.GibsonJ.CrawfordT.Effects of fluid properties and pipe diameter on twophase flow patterns in horizontal lines. Int. J. Multiph. Flow19795(6)437–462.
6.
MatsuiG.Identification of flow regimes in vertical gas-liquid two-phase flow using differential pressure fluctuations. Int. J. Multiph. Flow198410(6)711–719.
7.
BerglesA. E.LopinaR. F.FioriM. P.Critical-heat-flux and flow pattern observations for low-pressure water flowing in tubes. Trans. ASME J. Heat Transf.19678969–74.
8.
SekoguchiK.TakeishiM.NishiuraT.KanoH.NomuraT.Multiple optical fiber probe technique for measuring profiles of gas-liquid interface and its velocity. ASME J. Fluid Eng.19853397–102.
9.
JonesO. C.ZuberN.The interrelation between void fraction fluctuations and flow patterns in two-phase flow. Int. J. Multiph. Flow19752(3)273–306.
10.
MiY.IshiiM.TsoukalasL. H.Vertical twophase flow identification using advanced instrumentation and neural networks. Nucl. Eng. Des.1998184(2)409–420.
11.
KuwaharaT.YamaguchiH.Void fraction measurement of gas-liquid two-phase flow using magnetic fluid. AIAA J. Thermophys. Heat Transf.200721(1)173–180.
12.
PanofskyW. K. H.PhillipsM.Classical electricity and magnetism, 2nd edition1962, pp. 158–163 (Dover PublicationsNew York).
13.
BashtovoyV. G.BerkovskyB. M.VislovichA. N.Introduction to thermomechanics of magnetic fluids1987, p. 39 (HemisphereWashington).
14.
BalasubramaniamR.RameE.KizitoJ.KassemiM.Two phase flow modeling: summary of flow regimes and pressure drop correlations in reduced and partial gravity. NASA CR-2006–214085, National Aeronautics and Space Administration, Washington, DC2006.
