TRANSFERUL DE IMPULS - Cadre Didactice
TRANSFERUL DE IMPULS - Cadre Didactice
TRANSFERUL DE IMPULS - Cadre Didactice
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Fluide Newtoniene<br />
• Ecuatia (1) si graficul corespunzator:<br />
– cel mai simplu caz = curgerea cu forfecare<br />
simpla<br />
• vectorul viteza are o singura componenta<br />
(pe directia x)<br />
• viteza variaza pe o singura directie<br />
(pe directia y)<br />
F<br />
= τ yx<br />
A<br />
⎛<br />
= μ⎜<br />
−<br />
⎝<br />
⇔ τ = μ ⋅ & γ<br />
yx<br />
yx<br />
dv<br />
dy<br />
x<br />
⎞<br />
⎟<br />
⎠<br />
= μ ⋅ & γ<br />
FENOMENE <strong>DE</strong> TRANSFER SI OPERATII UNITARE 22<br />
yx<br />
τ yx<br />
μ<br />
γ& yx
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