CFD modeling of two - phase pressure drop due to flow of oil - water emulsions through sudden contraction
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2012 by IJETT Journal|
|Year of Publication : 2012|
|Authors : Manmatha K. Roul , Laxman Kumar Sahoo|
Manmatha K. Roul , Laxman Kumar Sahoo. "CFD modeling of two - phase pressure drop due to flow of oil - water emulsions through sudden contraction". International Journal of Engineering Trends and Technology (IJETT). V3(5):677-682 Sep-Oct 2012. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Pressure drop through sudden contractions were numerically investigated for two - phase oil/water emulsions. Two - phase computational fluid dynamics (CFD) calculations, using Eulerian – Eulerian model were employed to calculate the velocity profiles and pressu re drop across sudden contraction. The realizable per - phase k ? ? turbulence model has been used as a closure model for turbulent flow. The pressure loss was determined by extrapolating the computed pressure profiles upstream and downstream of the contraction. From the pressure - loss and velocity data, the loss coefficients were obtained. The oil concentration was varied over a wide range of 0 - 97.3 % by volume. The loss coefficients for the emulsions were found to be independent of the concentration and type of emulsions. The numerical results were validated against experimental data from the literature and were found to be in good agreement.
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Two - phase flow, pressure drop, loss coefficient, velocity head, concentration, emulsion, etc