MODEL ANALITIK KINERJA HIDRAULIK PEMECAH GELOMBANG TIPE BOX CULVERT

Nastain; Purwanto Bekti Santoso; Titi Safitri  Maharani

doi:10.54199/zhnpnp25

Authors

Nastain Teknik Sipil Universitas Jenderal Soedirman
Purwanto Bekti Santoso Universitas Jenderal Soedirman
Titi Safitri Maharani Universitas Perwira Purbalingga

DOI:

https://doi.org/10.54199/zhnpnp25

Keywords:

box culvert; koefisien transmisi; koefisien refleksi; koefisien disipasi energi

Abstract

Salah satu solusi untuk mengatasi kekurangan pemecah gelombang tipe tumpukan batu adalah pemecah gelombang tipe box culvert yang hemat material dan ramah lingkungan. Penelitian ini dilakukan untuk menentukan nilai koefisien transmisi (K_T), koefisien refleksi (K_R) dan koefisien disipasi energi (K_D) sebagai parameter kinerja hidraulik pemecah gelombang tipe box culvert yang dirancang sebagai struktur pemecah gelombang dengan dinding kedap air pada bagian atas dan lubang tipe box culvert pada bagian bawah. Penelitian dilakukan dengan model analitik menggunakan metode fungsi Eigen, dimana potensial kecepatan gelombang (Ø) reguler digunakan sebagai variabel dasar. Parameter lubang dan gelombang divariasikan untuk menentukan kinerja pemecah gelombang. Hasil penelitian menunjukan bahwa semakin kecil nilai tinggi lubang box culvert relatif ( ) dan semakin besar nilai panjang lubang box culvert relatif ( ) maka nilai K_T akan menurun dan sebaliknya nilai K_R akan meningkat. Sedangkan nilai K_D akan meningkat jika nilai dan semakin besar, tetapi akan menurun setelah mencapai nilai K_D maksimum.

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