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http://dx.doi.org/10.6112/kscfe.2011.16.3.075

NUMERICAL PREDICTION OF THE OPTIMAL STAGGER ANGLES FOR A HIGH-POWER TURBO BLOWER  

Park, T.G. (경상대학교 대학원 기계공학과)
Chung, H.T. (경상대학교 기계공학과, 항공기부품기술연구소)
Park, J.Y. (한국기계연구원)
Sung, B.I. (삼정터빈(주))
Publication Information
Journal of computational fluids engineering / v.16, no.3, 2011 , pp. 75-81 More about this Journal
Abstract
The turbo blowers having large power capacity are generally composed of the variable inlet guide vane, the impeller and the variable diffuser. In the present study, the effect of the stagger angles on the aerodynamic performances has been investigated by CFD methods. The design specifications of the reference model having 400kW power were given as 7.43kg/s of mass flow rate, 1.66 of pressure ratio with 12000rpm of impeller rotating speed. As the first simulation parameter, the diffuser vane angle was varied in the range of ${\pm}$20 degree from the initial-design point. The inlet guide vane angles, as the second one, was changed in the range of ${\pm}$40 degree from the initial-design point. The commercial Navier-Stokes solver, ANSYS-CFX, was applied to solve the three-dimensional unsteady flow fields inside the turbo blower. Through the numerical results, the desirable setting angles were proposed to fit the best performance to the variation of the operating conditions.
Keywords
Aerodynamic Performance; Stagger Angle; Turbo Blower; Inlet Guide Vane; Diffuser;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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