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ANGGOTA KELOMPOK :
1. ANASTASIA MARGARETA ( 13518 )
2. ERICK MARSHALL .P ( 13508 )
3. F. TANTY ESTERINA L. M ( 13527 )
4. PUTRI MONICA .S ( 13506 )
5. STEFANUS KUSHARTANTO ( 13513 )
 Ada dua macam, yaitu:
1. Penelusuran hidrologis
 Penelusuran Waduk
 Penelusuran Kolom Datar
 Penelusuran Sungai
2. Penelusuran hidraulis
Dapat dinyatakan dalam:
Pada penelusuran aliran di waduk, dimana permukaan air horisontal tampungan
hanya merupakan fungsi dari aliran keluar.
S = f(O)
atau
S = K O
Pada penelusuran aliran di sungai, tampungan hanya merupakan fungsi aliran masuk
dan aliran keluar.
S = KO + Kx(1-O)
Bila suatu waduk dilengkapi dengan bangunan pelimpah (spillway).
O = Cd B H3/2
Nilai koefisien debit Cd = 1,7
 Apabila interval waktu penelusuran adalah ∆t, maka:
 Pada penelusuran air di waduk, tampungan S hanya
fungsi aliaran keluar. Untuk waktu ke 1 dan ke 2
persamaan dapat ditulis:
S1 = K O1
dan
S2 = K O2
Substitusi kedua persamaan membentuk persamaan:
O2 = C0I2 + C1I1 + C2O1
Dimana:
Persamaan tersebut dapat ditulis dalam
bentuk:
α2 = I1 + I2 + β1
Dengan:
 Metode penelusuran banjir melalui sungai yang
banyak digunakan adalah Metode Muskingum.
 Tampungan total adalah jumlah dari tampungan
prisma dan tampungan baji:
Persamaan tersebut dapat ditulis menjadi:
(pers.I)
 Penelusuran aliran sungai dilakukan dengan
membagi waktu aliran menjadi sejumlah langkah
waktu (∆t), sehingga persamaan menjadi:
Persamaan tersebut dapat ditulis dalam bentuk
berikut untuk mendapatkan nilai S2 :
(pers.I) ditulis untuk waktu ke 1 dan 2 :
Dimana C0, C1 dan C2 adalah konstanta yang
mempunyai bentuk:
Nilai K ditentukan dengan menggunakan persamaan
berikut:

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Kelompok-Anggota

  • 1. ANGGOTA KELOMPOK : 1. ANASTASIA MARGARETA ( 13518 ) 2. ERICK MARSHALL .P ( 13508 ) 3. F. TANTY ESTERINA L. M ( 13527 ) 4. PUTRI MONICA .S ( 13506 ) 5. STEFANUS KUSHARTANTO ( 13513 )
  • 2.  Ada dua macam, yaitu: 1. Penelusuran hidrologis  Penelusuran Waduk  Penelusuran Kolom Datar  Penelusuran Sungai 2. Penelusuran hidraulis
  • 3. Dapat dinyatakan dalam: Pada penelusuran aliran di waduk, dimana permukaan air horisontal tampungan hanya merupakan fungsi dari aliran keluar. S = f(O) atau S = K O Pada penelusuran aliran di sungai, tampungan hanya merupakan fungsi aliran masuk dan aliran keluar. S = KO + Kx(1-O) Bila suatu waduk dilengkapi dengan bangunan pelimpah (spillway). O = Cd B H3/2 Nilai koefisien debit Cd = 1,7
  • 4.  Apabila interval waktu penelusuran adalah ∆t, maka:  Pada penelusuran air di waduk, tampungan S hanya fungsi aliaran keluar. Untuk waktu ke 1 dan ke 2 persamaan dapat ditulis: S1 = K O1 dan S2 = K O2 Substitusi kedua persamaan membentuk persamaan: O2 = C0I2 + C1I1 + C2O1
  • 6. Persamaan tersebut dapat ditulis dalam bentuk: α2 = I1 + I2 + β1 Dengan:
  • 7.  Metode penelusuran banjir melalui sungai yang banyak digunakan adalah Metode Muskingum.  Tampungan total adalah jumlah dari tampungan prisma dan tampungan baji: Persamaan tersebut dapat ditulis menjadi: (pers.I)
  • 8.  Penelusuran aliran sungai dilakukan dengan membagi waktu aliran menjadi sejumlah langkah waktu (∆t), sehingga persamaan menjadi: Persamaan tersebut dapat ditulis dalam bentuk berikut untuk mendapatkan nilai S2 : (pers.I) ditulis untuk waktu ke 1 dan 2 :
  • 9. Dimana C0, C1 dan C2 adalah konstanta yang mempunyai bentuk:
  • 10. Nilai K ditentukan dengan menggunakan persamaan berikut: