| 摘要: |
| 采用全周非定常数值模拟的方法,求解两种畸变角时,进口周向总压畸变对某型风扇流场的影响,并详细分析了总压畸变沿风扇的传递情况。计算和分析结果表明,该方法可以清晰描述流场参数沿周向分布情况;总压畸变会引起总温畸变,并且进口畸变强度相同时,畸变角度及动静叶间的相互作用对畸变传递有较大影响。 |
| 关键词: 非定常数值仿真+ 风扇 总压畸变+ |
| DOI： |
| 分类号:V231 |
| 基金项目:自然科学基金资助项目(50236020) |
|
| Numerical simulation of effects of steady circumferential total pressure distortion on a small fan |
|
SUN Peng, FENG Guo-tai
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School of Energy Science and Engineering,Harbin Inst.of Techology,Harbin 150001,China
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| Abstract: |
| 3-D unsteady numerical method is used to compute the flow field of a small fan with inlet circumferential total pressure distortion.Two distortion angles are involved.The delivery of distortion in flow area is described and analyzed in detail.It has been found that this method can clearly describe the distribution of parameters along pitchwise,and total pressure distortion can induce total temperature distortion.Distortion angels and interaction between rotor and stator have great influence on the delivery of distortion. |
| Key words: Unsteady numerical simulation~+ Fan Total pressure distortion~+ |
