Analisa Self-propulsion High Skew Propeller Pada Submerged Body Vessel Dengan Metode CFD

Muslim, Imam Anthony (2021) Analisa Self-propulsion High Skew Propeller Pada Submerged Body Vessel Dengan Metode CFD. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Interaksi antara lambung dan propeller merupakan salah satu aspek penting yang harus diketahui dalam proses desain dan operasional suatu submerged body vessel / kapal selam. Hasil interaksi tersebut ialah berupa thrust deduction (t) dan wake factor (w) yang dapat dinyatakan pada hull efficiency (ηH) dan nantinya dapat digunakan untuk menghitung propulsive efficiency (ηD). Self-propulsion merupakan suatu percobaan yang menggunakan model kapal dengan propeller guna untuk mengetahui hasil interaksi antara keduanya. Pada proses analisanya, hasil self-propulsion berhubungan dengan hasil data resistance test dan data open water test. Pada penelitian ini dilakukan simulasi CFD (Computational Fluid Dynamics) resistance test dan CFD self-propulsion dengan metode actuator disk dan metode sliding grid terhadap model kapal selam dan high skew propeller yang telah diteliti pada penelitian sebelumnya dengan menggunakan simulasi CFD open water test. Berdasarkan hasil simulasi dan perhitungan, didapatkan hasil nilai hambatan yang semakin meningkat setiap pertambahan kecepatan. Hasil nilai interaksi high skew propeller dan lambung kapal selam berupa nilai thrust deduction (t) dan wake factor (w) yang bervariasi pada kedua metode akibat nilai yang nilai thrust yang berbeda. Serta hasil nilai propulsive efficiency (ηD) yang semakin meningkat pada kecepatan tiap stage akibat nilai rotative efficiency (ηR) yang dipengaruhi oleh nilai torsi propeller yang semakin tinggi, hull efficiency (ηH) yang pengaruhi oleh nilai wake factor (w) dan thrust deduction (t) pada setiap stagenya, dan propeller efficiency (η0) yang dipengaruhi KT, KQ0 dan J pada diagram open water test. ===================================================================================================== Hull and propeller interaction is one important aspect that has to be known in design and operational of submerged body vessel / submarine. The results of these interactions are thrust deduction (t) and wake factor (w) which can be expressed in hull efficiency (ηH) and can later be used to calculate propulsive efficiency (ηD). Self-propulsion is a model test that use hull model with its propeller in order to find out the results of the interaction between hull and propeller. The results of self-propulsion analysis are related to the results of resistance test data and openwater test data. In this research, a simulation of CFD (Computational Fluid Dynamics) resistance test and CFD self-propulsion with the actuator disk method and the sliding grid method was carried out on the submarine model and the high skew propeller propeller which had been investigated in previous studies using the open water test CFD simulation. Based on the simulation results and calculations, the result of the resistance value is increasing each stage speed. The result of the interaction of high skew propeller and hull are varies value thrust deduction (t) and wake factor (w) in the two CFD methods due to the different values of thrust. The result of the increasing propulsive efficiency (ηD) value at the speed of each stage is affected due to the value of the rotative efficiency (ηR) which is influenced by the higher propeller torque value, the hull efficiency (ηH) which is influenced by the wake factor (w) - thrust deduction (t) at each stage, and propeller efficiency (η0) which is influenced by KT, KQ0, and J on the open water test diagram.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Self-propulsion, CFD
Subjects: T Technology > TS Manufactures > TS156 Quality Control. QFD. Taguchi methods (Quality control)
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: Imam Anthony Muslim
Date Deposited: 01 Sep 2021 03:32
Last Modified: 01 Sep 2021 03:32
URI: https://repository.its.ac.id/id/eprint/91067

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