... 畸变系[因]数 distortion factor 畸变指示器 distortion indicator 畸变指数 distortion index ...
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When Mae =0.45, the total pressure recovery coefficient equals 0.881, circular steady total pressure distortion coefficient equals 1.292%, turbulence intensity equals 1.513%, and synthesis distortion coefficient equals 2.805%, which meet the requirement of the matching of engine and inlet.2.
出口马赫数Mae = 0.45时,总压恢复系数为0.881,稳态周向畸变指数为1.292%,紊流度为1.513%,综合畸变指数为2.805%,满足进发匹配的要求。
参考来源 - 一种腹下S弯进气道地面和低速大攻角状态下气动特性研究It shows that, the results have evident effects on the flow of outlet section on the premise of neglecting fuselage, especially as to distortion index DC60.
结果表明,机身的缺少,对进气道出口截面的流场尤其是畸变指数DC60具有比较明显的影响。
参考来源 - 跨声速风扇机匣处理非定常流动分析及某进气道数值计算·2,447,543篇论文数据，部分数据来源于NoteExpress
偏置中心体尾端，在一定范围内能调节周向畸变指数。
The circular distortion factor can be regulated by turning the tail end of the centre body in certain extent.
但是进气道内气流分离的区域和出口截面流场畸变指数却与侧滑角的大小密切相关。
But the regions of local flow separation and distortion factor of the flow at the exit section are relevant closely to the yaw angle.
试验表明其出口平均总压恢复系数较低，周向总压畸变指数较大，旋流较强且很不规则。
Test results show lower exit average total pressure recovery, larger circumferential total pressure distortion and stronger and more irregular secondary flow.
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