Abstract

Plumbing system use pipe fittings to connect straight pipe or tubing section for regulating or measuring fluid flow. Y (wye)-shape fitting is one of the important component in the plumbing system. A wye branch allows splitting a branch line equally in two directions. The opening sizes can vary for different situations for instance in situation where a large main line needs to be split into two smaller branches. The wye shape fitting will convert into T shape fitting when the included angle between two pipe branches is 180°. In the present work, effect of angle of turn/bend for a Y-shape pipe will be studied computationally using ANSYS CFX software. For the analysis, all the three pipe branches of 1 inch internal diameter are selected along with equal length so that only the effect of bend angle at 45 0 , 60 0 , 90 0 and 180 0 can be studied. Water as a fluid is selected which flows through the plumbing system. The effect of bend angle, pipe diameter, pipe length, Reynolds number on the resistance coefficient is studied. It was observed that resistance coefficient vary with the change in flow

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