TRANSFERUL DE IMPULS - Cadre Didactice
TRANSFERUL DE IMPULS - Cadre Didactice
TRANSFERUL DE IMPULS - Cadre Didactice
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Fluide Nenewtoniene<br />
• Fluide care nu respecta comportarea de<br />
“fluid newtonian”:<br />
– Fie poseda numai viscozitate, dar:<br />
• Viscozitatea depinde de<br />
parametrii solicitarii<br />
• Corelatia tensiune – viteza de<br />
forfecare este neliniara<br />
– Fie pe langa viscozitate poseda<br />
elasticitate si/sau plasticitate<br />
F<br />
A<br />
=<br />
⎛<br />
−<br />
⎝<br />
dv<br />
dy<br />
x<br />
τ yx = μ⎜<br />
⎟ = μ & γ yx<br />
⎞<br />
⎠<br />
FENOMENE <strong>DE</strong> TRANSFER SI OPERATII UNITARE 25
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