TRANSFERUL DE IMPULS - Cadre Didactice
TRANSFERUL DE IMPULS - Cadre Didactice
TRANSFERUL DE IMPULS - Cadre Didactice
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Ecuatia fundamentala a staticii<br />
fluidelor<br />
•Ecuaţia (50) este valabilă atât pentru<br />
repausul absolut cât şi pentru repausul<br />
relativ al fluidelor.<br />
1<br />
⎛<br />
⎜<br />
ρ ⎝<br />
∂P<br />
∂x<br />
r<br />
i<br />
r 1 1<br />
F = grad P = ∇P<br />
ρ ρ<br />
+<br />
∂P<br />
∂y<br />
r<br />
j<br />
+<br />
∂P<br />
∂z<br />
r<br />
k<br />
⎞<br />
⎟<br />
⎠<br />
=<br />
( F i + F j + F k )<br />
FENOMENE <strong>DE</strong> TRANSFER SI OPERATII UNITARE 75<br />
x<br />
r<br />
y<br />
r<br />
z<br />
r
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