RAREFIED GAS DYNAMICS AND ITS APPLICATIONS TO VACUUM ...
RAREFIED GAS DYNAMICS AND ITS APPLICATIONS TO VACUUM ...
RAREFIED GAS DYNAMICS AND ITS APPLICATIONS TO VACUUM ...
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Holweck pump. Second stage<br />
S - pumping speed<br />
ℓ dP<br />
dη<br />
= sin α<br />
U<br />
vm<br />
It takes short CPU time<br />
Gη = S<br />
vmℓ 2<br />
P cos α[G(C) z − ℓz<br />
ℓ G(C) x ] − GηPh<br />
(P )<br />
G z sin2 α + ℓz )<br />
ℓ<br />
G(P x cos2 α<br />
Felix Sharipov – p. 40
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