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modul aliran seragam.pdf

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B. Cara penentuan harga y n<br />

dengan menggunakan<br />

Design Chart<br />

Dari persamaan manning didapat :<br />

A R<br />

2 3<br />

=<br />

nQ<br />

i<br />

=<br />

0,015×<br />

0,540<br />

0,0016<br />

=<br />

0,2025<br />

A R<br />

B<br />

2 3<br />

8 3<br />

=<br />

0,2025<br />

8 3<br />

( 0,90 )<br />

=<br />

0,27<br />

Angka tersebut diplot pada design chart sehingga<br />

didapat y n = 0,64 (lihat Gb. 3.8).

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