Numerical and Experimental Analysis of an Axial Fan

• Main Author: 林育洲
• Other Authors: 林顯群
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/72965681235402456233

碩士 === 國立臺灣科技大學 === 機械工程技術研究所 === 86 === 　　The purpose of this study is to establish a comprehensive design scheme for the axial-flow fan by integrting the aerodynamic theory, numerical analysis, experiment apparatus, and manufacture technology. First of all. by means of aerodynamic analysis, a two-dimensional blade shape is chosen from the NACA airfoil series according to the aerodynamic considerations. Next, a three-dimensional blade is constructed by stacking this 2-D basic shape along the direction of blade leading-edgel then, this blade is attached to the fan hub. Thereafter, by solving the Poisson equatio, a 3-D, near orthogonal grid system is generated to incorporate with the UNIC software for obtaining the detailed lofwfield information inside the axial fan. Also, this numerical outcome can be used as the bases for further blade modificatio. Consequently, the appropriate blade geometry is expressed in the CAD/CAM format for manufacturing the prototype. Finally, the actual performance characteristics of this prototype is attained by using the AMCA 210-85 test facility. In summary, the experimental result is correlated well with the design value and numerical repdiction. Notably, the desing scheme proposed here can be iterated to approach the optimum design for an axial fan and even other turbomachines, including the compressor and turbine.