Claim Missing Document
Check
Articles

Found 2 Documents
Search

Penerapan Desain Lambung Berbasis Variasi Sudut Deadrise untuk Meningkatkan Efisiensi Perahu Wisata Skala Kecil di Waduk Lecari Syahputri, Viony Fako; Nugroho, Hendy Pambudi; Sihombing, Herawaty Magdalena; Fadhilah, Mahesa Arma; Anam, Khoirul; Abadi, Galang Wahyu; Raharja, Achmad Mukti
JAST : Jurnal Aplikasi Sains dan Teknologi Vol 9, No 1 (2025): EDISI JUNI 2025
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/jast.v9i1.7148

Abstract

Lecari Reservoir in Wringinagung Village, Gambiran, Banyuwangi, is a new natural tourism destination resulting from a community initiative that has successfully transformed a slum area into a clean and comfortable tourist area. Although the number of visitors is relatively high, especially on weekends, tourism development still faces obstacles such as the lack of variety of water rides, so visitors easily get bored. The solution offered is the design of a two-person tourist boat, with attention to good maneuverability so that it can operate optimally in the relatively narrow reservoir (area 1,829 m², depth 7 meters, width ± 25 meters). Maneuverability analysis is the primary focus because it affects the safety and comfort of boat operations. As part of the community service activities, research was also conducted to evaluate the effect of variations in the deadrise angle of the boat's hull on the Curve of Sectional Area (CSA) and boat resistance performance through numerical simulations. Five deadrise angle configurations (13°, 15°, 17°, 19°, and 21°) were tested at a speed of 15 knots. The results show that a 21° deadrise angle produces the lowest total resistance of 0.66 kN, thus recommending its application in the design of tourist boats in Lecari Reservoir. The results of this community service contribute to the design of a more efficient and environmentally friendly small-scale tourist boat hull to support the development of local tourism based on natural potential.ABSTRAKWaduk Lecari di Desa Wringinagung, Gambiran, Banyuwangi, merupakan destinasi wisata alam baru hasil inisiatif warga yang berhasil mengubah kawasan kumuh menjadi area wisata yang bersih dan nyaman. Meski jumlah pengunjung cukup tinggi, khususnya pada akhir pekan, pengembangan wisata masih menghadapi kendala pada kurangnya variasi wahana air, sehingga pengunjung mudah merasa bosan. Solusi yang ditawarkan adalah perancangan perahu wisata berkapasitas dua orang, dengan memperhatikan kemampuan manuver yang baik agar dapat beroperasi optimal di waduk yang relatif sempit (luas 1.829 m², kedalaman 7 meter, lebar ±25 meter). Analisis manuver menjadi fokus utama karena mempengaruhi keselamatan dan kenyamanan operasional perahu. Sebagai bagian dari kegiatan pengabdian, dilakukan juga penelitian untuk mengevaluasi pengaruh variasi sudut deadrise lambung perahu terhadap Curve of Sectional Area (CSA) dan kinerja tahanan perahu melalui simulasi numerik. Lima konfigurasi sudut deadrise (13°, 15°, 17°, 19°, dan 21°) diuji pada kecepatan 15 knot. Hasil menunjukkan bahwa sudut deadrise 21° menghasilkan tahanan total terendah sebesar 0,66 kN, sehingga direkomendasikan untuk diterapkan pada desain perahu wisata di Waduk Lecari. Hasil dari pengabdian masyarakat ini yaitu memberikan kontribusi dalam perancangan lambung perahu wisata skala kecil yang lebih efisien dan ramah lingkungan untuk mendukung pengembangan wisata lokal berbasis potensi alam
A Hull Form Design Analysis with Variations of Block Coefficient (Cb) and Cross-Sectional Area (CSA) Nugroho, Hendy Pambudi; Syahputri, Viony Fako; Anam , Khoirul; Fadhilah , Mahesa Arma
Indonesian Journal of Maritime Technology Vol. 3 No. 2 (2025): Volume 3 Issue 2, December 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i2.8481800

Abstract

This study investigates the influence of hull-form variations on the hydrodynamic performance of a two-passenger leisure boat designed for reservoir operation. Five hull models were developed with deadrise angles of 13°, 15°, 17°, 19°, and 21° to examine how changes in the block coefficient (Cb) and cross-sectional area (CSA) affect total resistance and maneuvering characteristics. Numerical calculations and Computational Fluid Dynamics (CFD) simulations were performed for validation. The 13° deadrise model, which had the highest Cb, exhibited the lowest total resistance of 0.92 kN, while MATLAB-based maneuvering analysis showed the largest turning radius of 9.32 m. Conversely, the 21° deadrise model achieved the smallest turning radius of 5.91 m. At a Froude number (Fn) of 1.37, the boat operates in the planing regime, where a fuller hull enhances hydrodynamic lift and reduces wetted surface area, resulting in lower drag but reduced maneuverability. The results offer practical insights for designing efficient leisure boats optimized for calm-water environments such as reservoirs.