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modul aliran seragam.pdf

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- Parlovskii dan Miill Lofer dan Einstein serta<br />

Banks<br />

Mengambil<br />

asumsi<br />

bahwa<br />

gaya<br />

yang<br />

menghambat<br />

<strong>aliran</strong><br />

sama<br />

dengan<br />

jumlah<br />

gaya–gaya<br />

yang menghambat<br />

<strong>aliran</strong><br />

yang<br />

terbentuk<br />

dalam<br />

bagian–bagian<br />

penampang<br />

saluran. Dengan<br />

asumsi<br />

tersebut<br />

angka<br />

n<br />

ekivalen dihitung dengan persamaan sebagai<br />

berikut :<br />

n<br />

=<br />

⎡<br />

⎢<br />

⎢<br />

⎢<br />

⎢<br />

⎣<br />

n<br />

∑<br />

1<br />

( )<br />

2<br />

P n<br />

P<br />

n<br />

1 2<br />

n<br />

⎤<br />

⎥<br />

⎥<br />

⎥<br />

⎥<br />

⎦<br />

1 2<br />

=<br />

( )<br />

2 2<br />

2<br />

P n + P n + ... + P n<br />

1<br />

1<br />

2<br />

2<br />

P<br />

1 2<br />

n<br />

n<br />

1 2<br />

(3.18)

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