Audi Razif Santoso, . (2026) ANALISIS MANEUVERING KAPAL MENGGUNAKAN VIRTUAL CAPTIVE MODEL TEST TERHADAP VARIASI TRIM DAN SINK. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.
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Abstract
This study evaluates the effect of trim and sinkage variations on ship hydrodynamic characteristics using the Virtual Captive Model Test (VCMT) based on Computational Fluid Dynamics (CFD) on the KRISO Container Ship (KCS) model. Simulations were performed for sinkage variations of −0.00090, −0.00275, and −0.00599 and trim variations of 0.017°, 0.053°, and 0.097°, over drift angles of 2°–10° and two speed conditions represented by Froude numbers 0.152 and 0.163. The objective is to analyze the influence of trim and sinkage on lateral force (sway) and yaw moment, and to determine hydrodynamic coefficients using the Least Squares regression method. Results indicate that trim and sinkage affect sway force and yaw moment, but their contributions are relatively smaller compared to the effects of speed and drift angle. Increased sinkage tends to raise sway and yaw due to larger wetted surface area and altered pressure distribution along the hull, while changes in trim modify pressure distribution longitudinally with less significant effects within the studied range. The maximum nondimensional Y' and N' occurred at Fr = 0.163 and drift angle 10° (Y'_H = 0.206543; N'_H = 0.079192 for sinkage variation; Y'_H = 0.202338; N'_H = 0.073965 for trim variation). Force and moment data were nondimensionalized using the Yoshimura–Masumoto formulation and analyzed via Least Squares regression, yielding linear and nonlinear coefficients for lateral force (a = 0.07643; b = 34.32566) and yaw moment (a = 0.11545; b = 9.81361), which show good agreement with the simulation data. The combination of VCMT-based CFD and Least Squares demonstrates an effective approach to obtain hydrodynamic coefficients as an alternative for identifying ship Maneuvering parameters.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Additional Information: | [No.Panggil: 2110313029] [Pembimbing: Fakhi Akbar Ayub] [Penguji 1: Dr. Wiwin Sulistyawati] [Penguji 2: Sabila Fitri Afsari] |
| Uncontrolled Keywords: | Virtual Captive Model Test, Computational Fluid Dynamic, trim; sinkage, sway force, yaw moment, Least Squares, hydrodynamic coefficients |
| Subjects: | V Naval Science > V Naval Science (General) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering |
| Divisions: | Fakultas Teknik > Program Studi Teknik Perkapalan (S1) |
| Depositing User: | AUDI RAZIF SANTOSO |
| Date Deposited: | 27 Aug 2026 03:05 |
| Last Modified: | 04 Sep 2026 06:19 |
| URI: | http://repository.upnvj.ac.id/id/eprint/53538 |
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