Analisis Pengaruh Posisi Winged Air Induction Pipe (WAIP) Terhadap Tahanan Total Kapal Patroli Lambung V Berbasis CFD

Maulana, Muhammad Fa`iq Maulana (2026) Analisis Pengaruh Posisi Winged Air Induction Pipe (WAIP) Terhadap Tahanan Total Kapal Patroli Lambung V Berbasis CFD. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5019221128-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (5MB) | Request a copy

Abstract

Transportasi maritim menghadapi tekanan regulasi yang semakin ketat dari International Maritime Organization (IMO) terkait pengurangan emisi gas rumah kaca. Hambatan gesek merupakan komponen dominan dari hambatan total kapal, khususnya pada kapal berkecepatan tinggi seperti kapal patroli lambung V. Salah satu teknologi yang menjanjikan untuk mengatasi permasalahan ini adalah Air Lubrication System (ALS), yang bekerja dengan menyuntikkan udara ke bawah lambung untuk menciptakan lapisan gelembung yang mengurangi kontak langsung antara permukaan lambung dan air. Namun, metode injeksi aktif menggunakan kompresor memerlukan energi tambahan yang signifikan. Winged Air Induction Pipe (WAIP) hadir sebagai solusi injeksi udara pasif yang memanfaatkan tekanan negatif yang dihasilkan oleh hydrofoil untuk menghisap udara atmosfer tanpa kompresor. Penelitian ini bertujuan menganalisis pengaruh variasi posisi penempatan WAIP terhadap hambatan total kapal patroli lambung V menggunakan metode Computational Fluid Dynamics (CFD). Simulasi dilakukan menggunakan perangkat lunak ANSYS Fluent dengan pendekatan aliran dua fase (multiphase flow) berbasis metode Volume of Fluid (VOF) dan model turbulensi Shear-Stress Transport (SST) k-ω pada kecepatan dinas 30 knot. Analisis mencakup distribusi fraksi volume udara di bawah lambung, pola wall shear stress, serta perhitungan persentase pengurangan hambatan pada setiap variasi posisi WAIP. Hasil penelitian ini diharapkan dapat memberikan rekomendasi posisi penempatan WAIP yang optimal untuk memaksimalkan pengurangan hambatan gesek pada kapal patroli berlambung V.
===================================================================================================================================
Maritime transportation faces increasingly stringent regulatory pressure from the International Maritime Organization (IMO) regarding the reduction of greenhouse gas emissions. Frictional resistance is the dominant component of total ship resistance, particularly in high-speed vessels such as V-hull patrol boats. One of the most promising technologies to address this issue is the Air Lubrication System (ALS), which works by injecting air beneath the hull to create a bubble layer that reduces direct contact between the hull surface and water. However, active injection methods using compressors require significant additional energy, which can diminish the net energy savings achieved. The Winged Air Induction Pipe (WAIP) presents itself as a passive air injection solution that utilizes the negative pressure generated by a hydrofoil to draw in atmospheric air without a compressor. This study aims to analyze the effect of WAIP positioning variations on the total resistance of a V-hull patrol boat using Computational Fluid Dynamics (CFD). Simulations were conducted using ANSYS Fluent with a multiphase flow approach based on the Volume of Fluid (VOF) method and the Shear-Stress Transport (SST) k-ω turbulence model at a service speed of 30 knots. The analysis covers the distribution of air volume fraction beneath the hull, wall shear stress patterns, and the calculation of drag reduction percentage and Net Energy Saving for each WAIP position variation. The findings of this study are expected to provide recommendations for the optimal WAIP placement position to maximize frictional drag reduction on V-hull patrol boats.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	CFD, Lambung V, Reduksi Hambatan, Tahanan Total, WAIP CFD, V-hull, Drag Reduction, Total Resistance, WAIP
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Transportation Engineering > 21207-(S1) Undergraduate Thesis
Depositing User:	Maulana Muhammad Fa`iq
Date Deposited:	04 Aug 2026 06:23
Last Modified:	04 Aug 2026 06:23
URI:	http://repository.its.ac.id/id/eprint/142920

Actions (login required)

View Item