Comparative Study of Turbulence Models Used In CFD Simulations for the Calculation of Ship Resistance

Yudhistira, Firenza Dhimas (2024) Comparative Study of Turbulence Models Used In CFD Simulations for the Calculation of Ship Resistance. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

In this study 3D of the ship using KCS (Kriso Container Ship) model considered with Computational Fluid Dynamics (CFD) is a technique that models, predicts, and visualizes the flow of fluids, such as gas or liquid, using techniques from physics, applied mathematics, and computer science. According to The Korea Research Institute of Ships & Ocean (KRISO) is the manufacturer and designer of the KRISO Container Ship, or KCS, model of a container ship. The scientific community of marine hydrodynamics frequently uses the KCS model hull as a standard test case for ship hydrodynamics, with a bulbous bow and a flare fore above the waterline, the hull is a contemporary commercial container vessel. The stern has a transom and is a standard pram style stern. The primary parameters and dimensions utilized for numerical simulations, as well as the KCS hull geometry Keywords: Navier-stokes, RANS , CFD, etc. In this study, based on the analysis conducted using ANSYS Fluent, the difference in drag coefficient between experimental data and CFD was obtained. The average discrepancy from 5 variations of speed in velocity was 2.28% for average k-ε model, average for k-ω model 3.70%, and average 3.70% for k-ω SST model turbulence. Pressure distribution on the hull of the KCS ship tends to be concentrated on the bulbous bow and the pressure on the hull. The maximum pressure obtained from three types of k-ε model, k-ω model, and k-ω SST model turbulence with 5 various speed variations. Wave patterns comparison between experimental data (Lu.et.al 2019) and CFD has distinct, and five variations of the minimum velocity (Fr = 0.152) and maximum velocity (Fr = 0.282), has distinct wave pattern results turbulence k-ε model, k-ω model, and k-ω SST model.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Turbulence models, RANS, CFD, Resistance
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM161 Ships--Hydrodynamics V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM163 Hulls (Naval architecture) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Firenza Dhimas Yudhistira
Date Deposited:	04 Sep 2024 07:24
Last Modified:	04 Sep 2024 07:24
URI:	http://repository.its.ac.id/id/eprint/110654

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