Analisis Pergerakan Arus Pasang Surut Terhadap Perubahan Perletakan Pemecah Ombak Di Pelabuhan Ulee Lheue

Abstract

The movement of tidal currents at the mouth of the port is determined by the placement of the coastal structures (eg break water). Ulee Lheue Port, which is located in Banda Aceh City as one of the vital inter-island crossing ports, often experiences problems related to the movement of ships during seasonal changes due to currents and waves. The condition of the entrance channel at Ulee Lheue Port becomes difficult for ships to pass in the West and East monsoons. This paper aims to describe the current movement that occurs when the pemecah gelombang at Ulee Lheue Port is varied, its layout is reviewed based on the direction of the waves coming. Scenario I looks at the condition of the existing pemecah gelombang, scenario II extends the building on the right side 100m, scenario III extends the left side 250m, and scenario IV extends the left side 100m and the right side 155m. The data used to analyze the current movement are wind speed taken from the BMKG Blang Bintang station, available measurement currents, and tides records at the port pool for 30 days record. The current movement is simulated using Delft3D software. The simulation results show that inside the port in scenario II the smallest maximum current velocity is 0.25m/sec compared to other scenarios. Of the four simulated scenarios, in terms of current movements, scenario IV is better than the others. Besides that, it also provides the ship comfort when maneuvering into the port.

Model Numerik Hidrodinamika Arus dan Gelombang Dengan Pendekatan Fully Spectral Formulation untuk Pengembangan Kawasan Dermaga Perikanan Banda Aceh

“…Kedalaman kolam dermaga tersebut berkisar antara 0-7,7 meter dengan volume sedimen berkisar 250.117,15 m3 (Rahmawan et al, 2021). Arah arus dominan berasal dari arah utara dan tenggara (Munir, 2019) dan akan menyulitkan dalam alur transportasi kapal pada musim barat dan musim timur (Fatimah & Fauzi, 2021).…”

“The Beach Recovery System” Sebagai Sebuah Konsep Penataan Kawasan Pantai Di Bali Berlandaskan Ajaran Tri Hita Karana

“…Susunan batu-batu besar yang menonjol ke tengah laut tersebut diyakini dapat memecah ombak sehingga yang tadinya berkekuatan besar menjadi lebih lemah. Oleh karena itu pembangunan crab adalah hal yang penting untuk memecah dan melemahkan arus yang kuat (Fatimah & Fauzi, 2021). Bentuk pembangunan crab dapat dilihat dalam gambar berikut: Gambar 1.…”