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Abstract: Optimization
design of a hundred-percent reversible axial fan is conducted by the
method of three-dimensional optimization design based on design of
experiment, flow analysis and blade profile modification. The results
show that the performance of the fan is improved significantly without
changes of diameter, rotation speed and tip clearance. At designed
condition, the efficiency of positive rotating fan is 82.3% by 9.1%
improved and the efficiency of negative rotating fan is 79.1% by 3.3%
improved. The internal flow field of the fan is reasonable without
obvious separations and back flows. The total pressure distribution at
the fan outlet is improved as well. The performance of the fan at
different flow rate is fine with the smooth performance curve. The
three-dimensional optimization design of the axial fan is successfully
validated by the experimental results.
Key words:
Subway Fan Three-dimensional optimization design
CLC No: TH432
中国科学院百人计划资助项目. Received 20051130,
received in revised form 20060215
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