轴流风机导流罩及拢风筒的优化
Fluid Machinery(2022)
Abstract
为提升畜禽舍用轴流风机的风量与能效比,以某轴流风机为原模型,对拢风筒开合角、拢风筒斜长、叶顶间隙、导流罩安装位置这4个参数进行优化.利用FLUENT软件进行单因素试验并在每个参数中选出3个最优水平,再进行正交试验.分析结果后得出了最佳优化方案:当拢风筒开合角为8°,拢风筒斜长为1300 mm,叶顶间隙为5 mm且导流罩距叶轮平面30 mm时,该轴流风机风量增加了12.82%,能效比提升了18.74%,提升效果显著.通过风洞试验验证了原模型数值模拟结果的准确性,即证明优化结果真实准确.
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