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Slide 8 - Personal Ftsl Itb Ac Id

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Untuk saluran setengah lingkaran dengan luas yang<br />

sama.<br />

A = ½ p r 2 = 3,21 m2 r = 1,42 m<br />

Rh = ½ r = 0,71 m<br />

Q = 1/n . A. R 2/3 . S ½<br />

= 1/0,015 . 3,21 . (0,71 ) 2/3 . 0,001 ½<br />

= 5,38 m3/det<br />

Debit aliran di saluran setengah lingkaran 7,6 % lebih<br />

besar daripada debit di saluran persegi.

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