Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Applied Science Technology in Naval Engineering (ASTNE)
Ayub, Fakhri Akbar
Unknown Affiliation
Energy Engineering Mechanical Engineering Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Studi Dampak Perairan Dangkal terhadap Gaya Lateral (Sway Force) dan Momen Berputar (Yaw Moment) Kapal Rico; Ayub, Fakhri Akbar
Applied Science and Technology on Naval Engineering Vol 3 No 2 (2025): Applied Science and Technology on Naval Engineering (ASTNE)
Publisher : Fakultas Teknik UPN Veteran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54378/astne.v3i2.11786

Abstract

This study investigates the influence of restricted waters on the sway force (Y’H) and yaw moment (N’H) acting on a ship. We performed simulations using Computational Fluid Dynamics (CFD) on a 1:40 scale KRISO Container Ship (KCS) model, varying ship speed, water depth (1.3T and 1.6T), and drift angle (2°–10°). The simulation results indicate that both Y’H and N’H increase significantly as the water becomes shallower and the drift angle becomes larger. This phenomenon is attributed to the pressure imbalance around the ship's hull, caused by flow confinement. These findings are anticipated to provide valuable insights for safer and more efficient ship maneuvering, especially in narrow and shallow waterways. Keywords: restricted waters; bank effect; sway force; yaw moment; CFD
Optimalisasi Efisiensi Turbin Arus Laut Horizontal untuk Mendukung Kebutuhan Energi di Kawasan Pesisir Larantuka Nikmah, Indana Zulfatun; Ayub, Fakhri Akbar
Applied Science and Technology on Naval Engineering Vol 3 No 2 (2025): Applied Science and Technology on Naval Engineering (ASTNE)
Publisher : Fakultas Teknik UPN Veteran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54378/astne.v3i2.11789

Abstract

This study aims to evaluate the energy conversion efficiency of Horizontal Axis Tidal Turbines (HATT) by varying blade length and angle of attack (AoA), and to assess their potential application in the coastal region of the Larantuka Strait. Numerical simulations were performed using Computational Fluid Dynamics (CFD) across nine turbine configurations to determine torque and power coefficient (Cp). The turbine with a 1 m blade and 10° AoA achieved the highest Cp value of 0.68. Meanwhile, the turbine with a 2 m blade and the same AoA, despite having a slightly lower Cp (0.66), produced the highest annual energy output of 737,619.7 kWh. With a net power output of 140.65 kW, approximately four units of this turbine are required to supply around 10% of Larantuka’s annual electricity demand. The selection of the optimal turbine model is based on a multi-objective approach that balances efficiency and energy output. These findings highlight the strong potential of tidal turbines as a renewable energy solution in eastern Indonesian coastal areas.
Co-Authors Nikmah, Indana Zulfatun Rico