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LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice

LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice

LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice

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3/9/2003<br />

CONDENSAREA VAPORILOR<br />

odv x =creşterea vitezei con<strong>de</strong>nsatului când<br />

distanţa <strong>de</strong> la peretele rece creşte <strong>de</strong> la y<br />

la (y + dy).<br />

o Derivând (180) în raport cu y:<br />

2<br />

dF x = μ 2<br />

dy<br />

dy<br />

o şi înlocuind în (179) se obţine:<br />

d<br />

2<br />

d vx<br />

= − 2<br />

dy<br />

v<br />

ρg<br />

μ<br />

(181)<br />

(182)<br />

<strong>LUCIAN</strong> <strong>GAVRILĂ</strong> <strong>–</strong> <strong>Fenomene</strong> <strong>de</strong> <strong>transfer</strong> <strong>II</strong> 25

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