CFD Simulation Of Fluid Flow Parameters In Junction Of Aircraft Hydraulic Pipe System

Che Wan, Muhamad Farid (2016) CFD Simulation Of Fluid Flow Parameters In Junction Of Aircraft Hydraulic Pipe System. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) CFD Simulation Of Fluid Flow Parameters In Junction Of Aircraft Hydraulic Pipe System.pdf - Submitted Version Download (577kB)

Abstract

The flow field in junction of an aircraft hydraulic pipe system is complicated due to the ripple property of oil flow velocity and different frequencies of two pumps in aircraft. In this study, the flow fields of T-junction and Y-junction were drawn and analyzed using Solidwork software. Based on previous study, there are variation rule of velocity peak in T-junction with different frequencies and phase-differences. In addition, the eddy and velocity shock existed in the corner of the T-junction and the limit working state was obtained. However, through the enhancement of technology, Y-junction is adopted. Y-junction is another traditional industrial device which would help to minimize the pressure losses of junction. Y-junction is a kind of joint and has different structures from T-junction. The development of Y-junction has led to the disappearing of eddy. Although the eddy disappeared in Y-junction, the velocity shock and pressure loss were still too big. To address these faults, an arc-junction has been designed. Based on the flow fields of arc-junction, the eddy in the junction corner disappeared and the velocity loss declined compared to T-and Y-junction. Through the comparison of the pressure loss of three junctions, the arc-junction experienced the lowest loss value which is 30.23 MPa and its pressure loss has reached the minimum value of 50.25 m/s.

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