Institutt for petroleumsteknologi og anvendt geofysikk - NTNU
Institutt for petroleumsteknologi og anvendt geofysikk - NTNU
Institutt for petroleumsteknologi og anvendt geofysikk - NTNU
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1 x (1 − x)<br />
= +<br />
μ μ μ<br />
G<br />
L<br />
Hom<strong>og</strong>eneous model tends to under predict pressure drop, but can give reasonable results at<br />
high pressure and high mass flux, as in oil/gas wells, <strong>for</strong> example.<br />
G = ρu<br />
2<br />
fG<br />
2ρ d<br />
=<br />
fρu<br />
2d<br />
2<br />
Darcy-Weisbach equation <strong>for</strong> pressure drop in pipes<br />
Δ p =<br />
f<br />
2<br />
L<br />
ρu<br />
d<br />
2<br />
Blasius equation <strong>for</strong> friction factor<br />
0,3164<br />
f =<br />
0,25<br />
Re<br />
used in two-phase flow <strong>for</strong> 2000
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