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이호준(Ho-June Lee),이권희(Kwon-Heuy Lee),이창호(Chang-Ho Lee),장효준(Hyo-June Jang),노석홍(Seok-Hong Noh) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
The inclined jet issued from a soft nozzle has been used to dye and transfer the fabric in dyeing machinery. The efficiency of these dyeing machines is dependent on the jet characteristics such as jet angle, flow rate, velocity, pressure distributions, etc. In this study, We carried out experiment and computational analysis to understand the dyeing jet characteristics in the rapid dyeing machinery. An axi-symmetric incompressible Navier-Stokes equation with k- turbulence model and implicit VOF method. are used in computation. The pressure ratio applied in nozzle operation is in the range of 1.5 and 2.5, the diameter of nozzle exit is in the range of 1.74 ㎜ ~ 3.71 ㎜. Computational results are compared with experimental results.