Adilia Apriliana, . (2026) ANALISIS COMPUTATIONAL FLUID DYNAMIC PADA VARIASI BENTUK NOZZLE DAN TEKANAN BALIK BERBAGAI TIPE NOZZLE DI SISTEM PROPULSI HIGH-PRESSURE WATERJET. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.
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Abstract
This study aims to analyze the effect of Nozzle length and l/d ratio variations on thrust, velocity, flow coefficient, and hydraulic loss in an AUV Waterjet system. The method used is Computational Fluid Dynamics simulation with Nozzle geometry variations including Conical Nozzle, Cos Nozzle, and Exponent Nozzle at lengths of 40 mm, 60 mm, and 90 mm. Next, variations in the l/d ratio were made based on the highest results of the length variation of 1, 1/2, 1/3, and 1/4 under various back pressure conditions. The simulation results showed that the Cos Nozzle with a length of 90 mm produced the highest thrust and velocity, while in the l/d ratio variation, the 1/3 ratio provided the most optimal performance with high thrust, stable Flow coefficient values, and small hydraulic losses, especially under low back pressure conditions. This study concludes that the Cos Nozzle configuration with a length of 90 mm and an l/d ratio of 1/3, operated at low back pressure, is recommended to improve the hydrodynamic efficiency and propulsion performance of the Waterjet system on AUVs.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Additional Information: | [No.Panggil: 2110313032] [Pembimbing: Fathin Muhammad Mahdhudhu] [Penguji 1: Fajri Ashfi Rayhan] [Penguji 2: Fakhri Akbar Ayub] |
| Uncontrolled Keywords: | High Pressure Waterjet Propulsion, Nozzle Optimization, CFD |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering |
| Divisions: | Fakultas Teknik > Program Studi Teknik Perkapalan (S1) |
| Depositing User: | ADILIA APRILIANA |
| Date Deposited: | 01 Apr 2026 04:47 |
| Last Modified: | 01 Apr 2026 04:47 |
| URI: | http://repository.upnvj.ac.id/id/eprint/42316 |
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