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LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice

LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice

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oSau:<br />

3/9/2003<br />

CONDENSAREA VAPORILOR<br />

o care se poate scrie sub forma:<br />

o În cazul flui<strong>de</strong>lor newtoniene, forţa <strong>de</strong><br />

frecare pe unitatea <strong>de</strong> suprafaţă are<br />

expresia:<br />

ρ gdy + dF = 0<br />

(178)<br />

dF<br />

F<br />

dy<br />

=<br />

= −ρg<br />

(179)<br />

μ<br />

dv<br />

x<br />

dy<br />

(180)<br />

<strong>LUCIAN</strong> <strong>GAVRILĂ</strong> <strong>–</strong> <strong>Fenomene</strong> <strong>de</strong> <strong>transfer</strong> <strong>II</strong> 24

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