Simulation and Experimental of Oil-Water Flow with Effect of Heat Transfer in Horizontal Pipe
International Journal of Mechanical Engineering and Applications
Volume 2, Issue 6, December 2014, Pages: 117-127
Received: Nov. 26, 2014;
Accepted: Dec. 18, 2014;
Published: Dec. 27, 2014
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Esam Mejbel Abed, Babylon University- College of Engineering, Mechanical Department, Babylon, Iraq
Zahra'a Aamir Auda, Babylon University- College of Engineering, Mechanical Department, Babylon, Iraq
There is a strong tendency for two immiscible fluids to arrange themselves so that the low viscosity constituent is in the region of high share. Therefore, it may be possible to introduce a beneficial effect in any flow of a very viscous liquid by introducing amount of a fluid lubricated as liquid-liquid oil-water flow. Two main classes of flows are seen, annular and small bubble in all experimental results. The pressure drop and mean heat-transfer coefficients were observed to depend strongly on the flow patterns. A correlation of the two-phase mean heat-transfer coefficients, based on a simple model of liquid flow, with a Reynolds number based on the actual mean velocity of the liquid mixture two-phase flow, were developed. An experimental rig facility has been designed and constructed, to enable measurements of local parameters in oil-water flow in the developing region of the flow in a 32 mm ID 6 m long pipe. The large discrepancies between model predictions and experimental data are reported in the literature review that the physics of oil-water flow is complex and not yet fully understood. The flow patterns that appear are classified in flow pattern maps as functions of either mixture velocity and water cut or superficial velocities. From these experiments a smaller number of annular flows are selected for studies of velocity and turbulence. The theoretical study was executed using software Fluent program, a modified turbulent diffusion model is presented. Simulation results carried out with the model show more physical predictions with respect to the particle deposition process and concentration profile. The theoretical results represent the pressure gradient distribution, velocity and mean heat transfer coefficient, pressure contours, velocity vectors, streamlines, and also velocity profiles. It was found that the methods with more restrictions (in terms of the applicable range of void fraction, liquid superficial Reynolds number) give better predictions.
Esam Mejbel Abed,
Zahra'a Aamir Auda,
Simulation and Experimental of Oil-Water Flow with Effect of Heat Transfer in Horizontal Pipe, International Journal of Mechanical Engineering and Applications.
Vol. 2, No. 6,
2014, pp. 117-127.
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