The present work focuses on the investigation of the effect of non-Newtonian behavior on the oil-water stratified flow in a horizontal channel using ANSYS Fluent. Coupled level set and volume of fluid (CLSVOF) has been used to capture the evolving interface assuming unsteady, coaxial flow with constant fluid properties. The diametric variation of oil volume fraction, mixture velocity, total pressure and pressure gradient has been studied. Non-Newtonian behavior of oil has been represented by the power law model in order to investigate the effect of flow behavior index. Stratified flow pattern tends to assume dispersed flow pattern with the change in the behavior of oil to non-Newtonian. The pressure gradient is found to be very much sensitive to the flow behavior index. The findings could be useful in designing the transportation pipe line in petroleum industries.<\/p>\r\n","references":"[1]\tS. Das, V. H. Gada, and A. Sharma, \u201cAnalytical and Level set method-based numerical study for two phase stratified flow in a pipe\u201d, Numerical Heat Transfer, Part A, 2015, vol. 67, pp.1253\u20131281.\r\n[2]\tV. H. Gada, D. Datta, and A. Sharma, \u201cAnalytical and Level-Set method-based numerical study for two-phase stratified flow in a plane channel and a square duct\u201d, Numerical Heat Transfer, Part A: Applications: An International Journal of Computation and Methodology, 2011, vol.60:4, pp. 347-380.\r\n[3]\tG. Elseth, \u201cAn experimental study of oil-water flow in horizontal pipes\u201d, The Norwegian University of Science and Technology (NTNU) for the degree of Dr. Ing, 2001.\r\n[4]\tV. H. Gada, and A. Sharma, \u201cAnalytical and level-set method based numerical study on oil\u2013water smooth\/wavy stratified-flow in an inclined plane-channel\u201d, International journal of Multiphase flow, 2012, vol. 38:1, pp. 99-117.\r\n[5]\tV. H. Gada, and A. Sharma, \u201cOn a novel dual grid Level Set method for two phase flow simulation\u201d, Numerical heat Transfer part-B Fundamentals, 2011, vol. 59:1, pp. 26-57.\r\n[6]\tV. H. Gada, and A. Sharma, \u201cOn derivation and physical interpretation of Level set-Based equation for two phase flow simulation\u201d, Numerical heat Transfer part-B Fundamentals, 2009, vol. 56:4, pp.307-322. \r\n[7]\tA. Goldstein, A. Ullmann, and N. Brauner, \u201cCharacteristics of stratified laminar flows in inclined pipes\u201d, International Journal of Multiphase Flow, 2015, vol.75, pp.267\u2013287.\r\n[8]\tS. Pandey, A. Gupta, D. Chakrabarti, G. Das, and S. Ray, \u201cLiquid\u2013liquid two phase flow through a horizontal T-junction\u201d, Chemical Engineering Research and Design, 2006, vol. 84 (A10), pp. 895\u2013904.\r\n[9]\tO. M. H. Rodriguez, and L.S. Baldani, \u201cPrediction of pressure gradient and holdup in wavy stratified liquid\u2013liquid inclined pipe flow\u201d, Journal of Petroleum Science and Engineering, 2012, vol. 96-97, pp. 140\u2013151.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 131, 2017"}