Propeller Performance and Noise Performance of Submarine Propeller Boss Vortex Diffuser Using CFD (Computational Fluid Dynamics) Method

Seciawanto, Joel Herdian (2023) Propeller Performance and Noise Performance of Submarine Propeller Boss Vortex Diffuser Using CFD (Computational Fluid Dynamics) Method. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Emisi kebisingan kapal selam merupakan perhatian penting dalam menjaga kerahasiaan operasi kapal selam. Sebagai hasilnya, ada kebutuhan yang semakin meningkat untuk memahami dan mengendalikan kebisingan yang dihasilkan oleh kapal selam. Penelitian ini berfokus pada prediksi numerik dan analisis kebisingan yang dipancarkan oleh baling-baling kapal selam dan performanya. Investigasi ini meliputi baling-baling kapal selam INSEAN E1619 yang beroperasi di perairan terbuka, di belakang lambung kapal selam generik, dan dalam kondisi bangun spesifik selama operasi. Perangkat lunak Dinamika Fluida Komputasional (CFD) digunakan untuk mensimulasikan aliran di sekitar baling-baling menggunakan persamaan Unsteady Reynolds Averaged Navier-Stokes (URANS), sementara analisis hidro-akustik dilakukan menggunakan persamaan Ffowcs-Williams dan Hawkings. Penelitian ini mengusulkan model baru "Propeller Boss Vortex Diffuser" yang dirancang untuk mengurangi kavitasi pusat vortex, dan akibatnya mengurangi emisi kebisingan kapal selam selama operasi. Hasil penelitian ini berkontribusi pada pemahaman kita tentang emisi kebisingan kapal selam dan memberikan wawasan untuk mengembangkan strategi pengurangan kebisingan yang efektif dalam operasi kapal selam. Metodologi yang digunakan dalam penelitian ini juga memberikan peluang untuk peningkatan dan penyempurnaan lebih lanjut dalam penelitian masa depan.
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Submarine noise emission is a significant concern for the purpose of secrecy of submarine operation. As a result, there is a growing need to understand and control the noise generated by submarines. This study focuses on numerically predicting and analyzing the radiated noise from submarine propellers and its performance. The investigation includes the INSEAN E1619 submarine propeller operating in open water, behind a generic submarine hull, and in specific wake conditions during operations. Computational Fluid Dynamics (CFD) software is employed to simulate the flow around the propeller using Unsteady Reynolds Averaged Navier-Stokes (URANS) equations, while hydro-acoustic analysis is performed using the Ffowcs-Williams and Hawkings equation. This study proposed a new model of “Propeller Boss Vortex Diffuser” which is designed to reduce the hub-vortex cavitation, and as a result on reducing the noise emission of the submarine during operation. The results of this research contribute to our understanding of submarine noise emissions and provide insights for developing effective noise reduction strategies in submarine operations. The methodology applied in this study also presents opportunities for further improvement and refinement in future research endeavors.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Computational Fluid Dynamics (CFD), Hub-Vortex Cavitation, INSEAN-1619 Propeller, Propeller Boss Vortex Diffuser (PBVD), Submarine Noise, Submarine Performance; Computational Fluid Dynamics (CFD), Hub-Vortex Cavitation, INSEAN-1619 Propeller, Propeller Boss Vortex Diffuser (PBVD), Submarine Noise, Submarine Performance.
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM753 Propellers
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Joel Herdian Seciawanto
Date Deposited:	25 Sep 2023 01:30
Last Modified:	25 Sep 2023 01:30
URI:	http://repository.its.ac.id/id/eprint/102528

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