A slip factor calculation in centrifugal impellers based on linear ...
A slip factor calculation in centrifugal impellers based on linear ...
A slip factor calculation in centrifugal impellers based on linear ...
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Axial compressor Centrifugal compressor<br />
X f<br />
Howell (1945)<br />
Deviati<strong>on</strong> angle δ = β 2 - β 2k .<br />
2 ( 2 ) + 0.<br />
002(<br />
β δ )<br />
( 0.<br />
23<br />
) θ t<br />
δ +<br />
= x f<br />
2k<br />
t<br />
c<br />
σ = 1− − β<br />
u<br />
σ = 1−<br />
C u<br />
Z-number of blades<br />
Slip <str<strong>on</strong>g>factor</str<strong>on</strong>g> σ or <str<strong>on</strong>g>slip</str<strong>on</strong>g> angle δ = β 2 - β 2k .<br />
( tan(<br />
β + δ ) ( ) )<br />
a2<br />
2<br />
2k<br />
tan<br />
s<str<strong>on</strong>g>in</str<strong>on</strong>g> β<br />
Z<br />
0.<br />
7<br />
2k<br />
C a<br />
2k<br />
(Wiesner)<br />
2k<br />
6