Work

RANS analysis of the self-propulsion performance for a twin-screw ship

Year: 2025

Type: article

Abstract: This study presents a comprehensive estimation of full-scale self-propulsion performance for a high-speed, twin-screw, single-skeg surface vessel using Reynolds-averaged Navier–Stokes (RANS)-based computational fluid dynamics (CFD). Resistance, propeller open-water characteristics, and self-propulsion behavior were analyzed by incorporating recent benchmark data on surface roughness—identified as a critical factor in full-scale CFD analysis. The numerical predictions, including key self-propulsion parameters, were validated against full-scale performance data extrapolated from model tests conducted at KRISO. Additionally, ship speeds were estimated by simulating surge motion induced by thrust from specified propeller RPMs under wave conditions, replicating sea trial environments. Finally, ship speeds corresponding to the prescribed RPMs were compared across CFD simulations, model tests, and actual sea trial results.

Source: International Journal of Naval Architecture and Ocean Engineering

DOI: 10.1016/j.ijnaoe.2025.100674

Authors: Je-In Kim, Bu-Geun Paik, Jong-Woo Ahn, Il-Ryong Park

Institutions: Dong-Eui University, Korea Research Institute of Ships and Ocean Engineering

Language: English

Topic: Ship Hydrodynamics and Maneuverability

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,200

Funder: Korea Research Institute of Ships and Ocean Engineering