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Assessment of Numerical Optimization Algorithms in Design of Low-Noise Axial-Flow Fan
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 Title & Authors
Assessment of Numerical Optimization Algorithms in Design of Low-Noise Axial-Flow Fan
Choi, Jae-Ho; Kim, Kwang-Yong;
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Three-dimensional flow analysis and numerical optimization methods are presented for the design of an axial-flow fan. Steady, incompressible, three-dimensional Reynolds-averaged Navier-Stokes equations are used as governing equations, and standard k- turbulence model is chosen as a turbulence model. Governing equations are discretized using finite volume method. Steepest descent method, conjugate gradient method and BFGS method are compared to determine the searching directions. Golden section method and quadratic fit-sectioning method are tested for one dimensional search. Objective function is defined as a ratio of generation rate of the turbulent kinetic energy to pressure head. Two variables concerning sweep angle distribution are selected as the design variables. Performance of the final fan designed by the optimization was tested experimentally.
Axial-Flow Fan;Sweep Angle;Navier-Stokes Equatio;Finite Volume Method;Numerical Optimization Technique;
 Cited by
전향 축류형 홴에서의 익단 누설 유동 구조,이공희;명환주;백제현;

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