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V1^2 / (2g) + P1 / (¥ñg) = V2^2 / (2g) + P2 / (¥ñg)

(V2^2 - V1^2) / (2g) = (P1 - P2) / (¥ñg)

(V2^2 - V1^2)  = 2(P1 - P2) / ¥ñ

Q = A1V1 = A2V2 ·Î ºÎÅÍ V2 = A1V1/A2

V1^2 ((A1/A2)^2 - 1) = 2(P1 - P2) / ¥ñ
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V1 = { 2(P1 - P2) / (¥ñ ((A1/A2)^2 -1))}^(1/2)

P1=¥ñgH1, P2=¥ñgH2 ·Î ºÎÅÍ P1-P2 = ¥ñg(H1-H2)

A1 = (¥ð/4)D1^2, A2 = (¥ð/4)D2^2 À¸·Î ºÎÅÍ (A1/A2)^2 = (D1/D2)^4

µû¶ó¼­ V1, V2¿Í À¯·® Q´Â ´ÙÀ½°ú °°ÀÌ °è»êÇÒ ¼ö ÀÖ´Ù.






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g : Á߷°¡¼Óµµ(m/s^2), A : ´Ü¸éÀû(m^2), ¥ð : ¿øÁÖÀ²
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