KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan
Vol 20, No 3 (2023): October

Performance Study of a Humpback Whale Fluke Turbine on Foil Shape Variation Based on Double Multiple Streamtube Model

Rizki Mendung Ariefianto (Department of Electrical Engineering, Universitas Brawijaya, Jl. Veteran, Ketawanggede, Lowokwaru, Malang, Indonesia 65145)
Rini Nur Hasanah (Department of Electrical Engineering, Universitas Brawijaya, Jl. Veteran, Ketawanggede, Lowokwaru, Malang, Indonesia 65145)
Wijono Wijono (Department of Electrical Engineering, Universitas Brawijaya, Jl. Veteran, Ketawanggede, Lowokwaru, Malang, Indonesia 65145)
Asfarur Ridlwan (Ocean Engineering Department, Institut Teknologi Sumatera, South Lampung)



Article Info

Publish Date
02 Nov 2023

Abstract

Exploration of ocean current energy allows for the development of turbines as the primary conversion device. Turbine technologies have been developed in various types, including bio-inspired turbines, such as the humpback whale fluke turbine. In this study, the achievement of a humpback whale fluke turbine is investigated by applying various forms of foil, both symmetrical and asymmetrical, to obtain the appropriate foil profile. Symmetrical foils were represented by NACA 0012, NACA 0018, and NACA 0021, while asymmetric foils were represented by NACA 4312, NACA 4512, and NACA 4712 foils. Simulations were performed using QBlade software, which was developed based on the DMST theory. In general, symmetrical foils have a more stable performance than asymmetrical foils because they produce a better performance at positive and negative angles of attack. This result is also supported by a review of efficiency and self-starting capability where symmetrical foils have significantly higher CP values and positive CQ along the azimuth angle than asymmetrical foils. Finally, NACA 0021 foil is recommended for a humpback whale fluke turbine based on its efficiency and self-starting capability.

Copyrights © 2023






Journal Info

Abbrev

KAPAL

Publisher

Subject

Earth & Planetary Sciences

Description

Jurnal ini merupakan Jurnal Ilmiah untuk mengembangkan ilmu dibidang Ilmu Pengetahuan & Teknologi Kelautan. Jurnal ini diterbitkan oleh Teknik Perkapalan Universitas Diponegoro 3 (tiga) kali dalam 1 tahun pada bulan Februari, Juni dan ...