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Darcy Formula
¡âp = (625.3 * f L W^2) / (d^5 ¥ñ)
Liquid flow¿¡ ´ëÇؼ´Â ¾ðÁ¦µçÁö Àû¿ëÀÌ °¡´ÉÇϳª, ¹è°ü³» À¯¼ÓÀº ÀûÁ¤ÇÑÁö °í·ÁÇÒ °Í.
p1°ú p2ÀÇ Â÷ÀÌ°¡ 10% ÀÌÇÏÀÎ °æ¿ì Inlet & Outlet ¾î´ÀÂÊÀÇ ¥ñ»ç¿ëÇÏ¿©µµ ¹«¹æ.
p1°ú p2ÀÇ Â÷ÀÌ°¡ 10~40% ÀÎ °æ¿ì Inlet & Outlet Æò±ÕÁ¶°ÇÇÏÀÇ ¥ñ»ç¿ëÇÒ °Í.
p1°ú p2ÀÇ Â÷ÀÌ°¡ 40% ÀÌ»óÀÎ °æ¿ì Empirical Formula of flow½ÄÀ» »ç¿ë.
¡âp : pressure [bar_g]
f : friction factor [ ]
L : length [m]
D : internal diameter [m]
g : accleration gravity 9.8 [m/sec^2]
W : flow rate [kg/hr]
d : internal diameter [mm]
¥ñ : weight density [kg/m3]
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¿¡¼, Crane book Technical paper No.410 metric edi. ¿¡ º¸¸é,
¡âp ´Â ¡âP ·Î Ç¥ÇöµÇ¾î ÀÖ°í, ´ÜÀ§´Â Pascals ·Î µÇ¾îÀִµ¥
bar_g °¡ ¸Â´ÂÁö È®ÀÎÇÏ¿© Áֽñ⠹ٶø´Ï´Ù.
±×·¯³ª ½ÇÁ¦·Î ¿¹Á¦¸¦ ¸¸µé¾î °è»êÇØ º¸¸é, °è»ê°ªÀº bar_g ´ÜÀ§¶ó°í º¼ ¶§°¡ ´õ Çö½ÇÀûÀ̶ó
È¥µ¿ÀÌ ¿À°í ÀÖ½À´Ï´Ù.