Three-dimensional analysis of the flow through an axial-flow fan

Title & Authors
Three-dimensional analysis of the flow through an axial-flow fan
Kim, Gwang-Yong; Kim, Jeong-Yeop; Jeong, Deok-Su;

Abstract
Computational and experimental investigations on the three-dimensional flowfield through an automotive cooling fan are carried out in this work. Steady, incompressible, three-dimensional, turbulent flow through a rotating axial-flow fan is analyzed with Reynolds averaged Navier-Stokes equations and standard k-.epsilon. turbulence model. The governing equations are discretized with finite-volume approximations in non-orthogonal curvilinear coordinates. Computational static pressures on the casing wall agree well with the experimental data which are measured in this work. And, they are sensitive to the change of tip clearance. The flowfield is not significantly affected by the thickness of the blade. The k-.omega. model gives the static pressure rise on the casing wall which is similar to that with the k-.epsilon. model.
Keywords
Axial Flow Fan;Navier-Stokes Equations;k-$\small{\varepsilon}$ Turbulence Model;Tip Clearance;Finite Volume Method;
Language
Korean
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