Abstract
In this work, a case of axisymmetric perfect core-annular flow (PCAF) is considered, where both the fluids are assumed to be incompressible and immiscible having different flow-behaviour and consistency indices, respectively. A steady and fully developed flow is studied theoretically with a focus on role of power law characteristics on CAF velocity profiles. It is noted that a low viscosity shear thinning fluid in the core significantly affects the velocity profiles. However, if the core has very high viscosity, the CAF velocity profile is almost independent of its flow-behaviour index. Further, a low viscosity shear thinning fluid can be the most promising option to be used as annular fluid in the CAF arrangement while transporting high viscous fluid in the CAF arrangement.
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References
Zhang S, Zhu Y, Hua Y, Jegat C, Chen J, Taha M (2011) Stability of surfactant-free high internal phase emulsions and its tailoring morphology of porous polymers based on the emulsions. Polymer 52(21):4881–4890
Foudazi R, Masalova I, Malkin AY (2011) Flow behaviour of highly concentrated emulsions of supersaturated aqueous solution in oil. Rheol Acta 50(11–12):897–907
Ghosh S, Mandal TK, Das G, Das PK (2009) Review of oil water core annular flow. Renew Sustain Energy Rev 13(8):1957–1965
Rodriguez OMH, Bannwart AC (2006) Experimental study on interfacial waves in vertical core flow. J Petrol Sci Eng 54(3):140–148
Ooms G, Vuik C, Poesio P (2007) Core-annular flow through a horizontal pipe: hydrodynamic counterbalancing of buoyancy force on core. Phys Fluids 19(9):092103
Bannwart C (2001) Modeling aspects of oil–water core–annular flows. J Petrol Sci Eng 32(2):127–143
Arney MS, Bai R, Guevara E, Joseph DD, Liu K (1993) Friction factor and holdup studies for lubricated pipelining -I. experiments and correlations. Int J Multiphase Flow 19(6):1061–1076
Bensakhria YP, Antonini G (2004) Experimental study of the pipeline lubrication for heavy oil transport. Oil and Gas Sci Tech 59(5):523–533
Hu HH, Joseph DD (1989) Lubricated pipelining: stability of core-annular flow. part 2. J Fluid Mech 205:359–396
Joseph DD, Bai R, Chen KP, Renardy YY (1997) Core-annular flows. Annu Rev Fluid Mech 29(1):65–90
Tripathi S, Tabor RF, Singh R, Bhattacharya A (2017) Characterization of interfacial waves and pressure drop in horizontal oil-water core-annular flows. Phys Fluids 29(8):082109
Tripathi S, Bhattacharya A, Singh R, Tabor RF (2015) Lubricated transport of highly viscous non-newtonian fluid as core-annular flow: a cfd study. Procedia IUTAM 15:278–285
Li H, Wong TN, Skote M, Duan F (2013) A simple model for predicting the pressure drop and film thickness of non-newtonian annular flows in horizontal pipes. Chem Eng Sci 102:121–128
Picchi D, Ullmann A, Brauner N (2018) Modeling of core-annular and plug flows of newtonian/non-newtonian shear-thinning fluids in pipes and capillary tubes. Int J Multiph Flow 103:43–60
Sahu KC (2019) Linear instability in a miscible core-annular flow of a newtonian and a bingham fluid. J Nonnewton Fluid Mech 264:159–169
Usha R, Sahu KC (2019) Interfacial instability in pressure-driven core-annular pipe flow of a newtonian and a herschel–bulkley fluid. J Nonnewton Fluid Mech 271:104144
Tripathi S, Tabor RF, Singh R, Bhattacharya A (2020) Experimental studies on pipeline transportation of high internal phase emulsions using water-lubricated core-annular flow method. Chem Eng Sci 223:115741
Acknowledgements
The author would like to thank Prof. Amitabh Bhattacharya (IIT Delhi), Prof. Ramesh Singh (IIT Bombay) and Prof. Rico Tabor (Monash University) for their support in carrying out this work.
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© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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Tripathi, S. (2024). Effects of Power Law Fluid Characteristics on Core-Annular Flow in a Horizontal Pipe. In: Singh, K.M., Dutta, S., Subudhi, S., Singh, N.K. (eds) Fluid Mechanics and Fluid Power, Volume 5. FMFP 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-6074-3_8
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DOI: https://doi.org/10.1007/978-981-99-6074-3_8
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