STUD Y OF AIR -WATER FLOW INSIDE A 3-D CROSS JUNCTION

Abstract

ABSTRACTThis study examines the flow of water and air in a cross junction by fluent underAnsys 12. Initially the problem will solve by using the less computationally intensivemixture model, and then turn to the more accurate Eulerian model. In this study whichis using flow of water and air inside closed and vertical conduit as cross junction sothe flow is water and air as mixture in inlet of pipe and the mixture leaves the pipe inthree outlets as shown in Figure (1), also the phase of the air is assume to be bubbleflow, so the diameter of the bubble of air will be present. The slip velocity equationneed to solve since there will be significant difference in velocities for the differentphases. The study used solid work programme to work the figure and then export it tofluent of Ansys. The study used the mixture model and Eulerian model to investigatethe distribution of air inside the cross pipe and the where of the effect of staticpressure inside the cross conduit for design. Also the contour of velocity magnitude isused to know the moving and distribution of the flow. The comparison between thetwo model are happen to know the range of converge for results for two model