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수치해석에 의한 횡류홴의 성능/소음 특성분석 및 최적화
조석규(S.K. Cho),조용(Y. Cho),문영준(Y.J. Moon),곽지호(J.H. Kwak),라종래(J.R. Ra),김재원(J.W. Kim) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
The performance and noise characteristics of cross flow fans are investigated by computational methods. The 2-D incompressible Navier-Stokes equations in moving coordinates are solved for obtaining the pressure fluctuations at the impeller blades and the stabilizer. The acoustic pressures arc then computed by the Ffowcs Williams-Hawkings equation. The performance and noise characteristics of the cross flow fan are investigated about the blade setting angle(α). the diffusing angle(β) and the stabilizer installation angle(??) and an optimized model is searched by using the Taguchi method. From the comparison. it is found that the flow energy biased to the stabilizer is evenly redistributed and the fan performance and noise characteristics are improved by the optimized model.