(128h) Cfd Model for Determining Holdup Oil-Water Dispersion in Turbulent Flow

Oil - water holdup for turbulent flow are commonly available, however, the common models s are not easily implemented for fast computation of dispersion oil-water system in horizontal tube due to gravity ? induced. The oil ? water dispersion was studied numerically in a horizontal pipe had been carried out using advanced computational fluid dynamics, CFD software (CFX 11.0 code).

The proposed model includes the choice of parameters in CFD for a dispersed flow with 25.4 mm inner diameter and 9.7 m length in horizontal tube model to obtain the best agreement with the pervious research work. In this work, input water fraction, 40, 50 and 60% of water controlling the performance of flow characteristics and hold up at mixture velocity of 1.8, 2.5 and 2.76 m/s. The aim of this study is to investigate the flow development along the tube length, determine the holdup; water local fraction distribution across the plane with varies length of horizontal tube.

With the advanced numerical simulation that can provide a better understanding of the module performance, especially for turbulent flow system and it is found to be fairly well-dispersed in the two-phase system. Hence, the CFD can be used to better apprehend fluid flows in complex geometries and to test the influence of the type of model and parameters such as Eulerian-Eularian model with k-å turbulence model can be successfully implemented to simulate the liquid-liquid flow in horizontal tube. The results are compared to the previous numerical work data obtained from CFX 4.4 an old version.