TY - JOUR
T1 - Research on inland ship hydrodynamic modeling and parameter identification based on CFD
AU - Ding, Shigan
AU - Zheng, Mao
AU - Tavakoli, Sasan
AU - Li, Songlong
AU - Lan, Jiafeng
AU - Lin, Bowen
AU - Zou, Tianyue
AU - Zhang, Mingyang
N1 - Publisher Copyright:
© 2024
PY - 2025/2/15
Y1 - 2025/2/15
N2 - Hydrodynamic modeling and the calculation of hydrodynamic derivatives for Inland ships have consistently presented challenges. This paper introduces a method for building ship maneuvering models utilizing Computational Fluid Dynamics (CFD) and the Maneuvering Motion Group (MMG) models. Forces and moments acting on the hull from fluid dynamics to predict calculating the hydrodynamic derivatives of unconventional ship hulls. Static Oblique Towing Tests (OTT) and Dynamic Circular Motion Tests (CMT) are used to collect synthetic data for the 3 Degrees of Freedom (DOF) of the MMG model. To improve the fitting accuracy of parameter identification of MMG model, this study suggests using an interpolation fitting method instead of the traditional least squares fitting method. Considering the unique characteristics of the research object of this paper, the reliability of its maneuvering model is validated through the creation of a scaled ship model corresponding to the CFD computational model. Ship model maneuvering tests, including the 15/15 Zigzag test, are conducted to refine certain propeller and rudder parameters. The proposed method is applied to the inland ship (ANJI 209 wheel). The results show that the mathematical model, established using interpolation fitting to determine hydrodynamic derivatives, accurately forecasts the ship maneuvering features, which is corroborated by the experimental data from ship model tests.
AB - Hydrodynamic modeling and the calculation of hydrodynamic derivatives for Inland ships have consistently presented challenges. This paper introduces a method for building ship maneuvering models utilizing Computational Fluid Dynamics (CFD) and the Maneuvering Motion Group (MMG) models. Forces and moments acting on the hull from fluid dynamics to predict calculating the hydrodynamic derivatives of unconventional ship hulls. Static Oblique Towing Tests (OTT) and Dynamic Circular Motion Tests (CMT) are used to collect synthetic data for the 3 Degrees of Freedom (DOF) of the MMG model. To improve the fitting accuracy of parameter identification of MMG model, this study suggests using an interpolation fitting method instead of the traditional least squares fitting method. Considering the unique characteristics of the research object of this paper, the reliability of its maneuvering model is validated through the creation of a scaled ship model corresponding to the CFD computational model. Ship model maneuvering tests, including the 15/15 Zigzag test, are conducted to refine certain propeller and rudder parameters. The proposed method is applied to the inland ship (ANJI 209 wheel). The results show that the mathematical model, established using interpolation fitting to determine hydrodynamic derivatives, accurately forecasts the ship maneuvering features, which is corroborated by the experimental data from ship model tests.
KW - Computational fluid dynamics (CFD)
KW - Free-running test
KW - Interpolation fitting
KW - Parameter identification
KW - Ship maneuvering modeling
UR - http://www.scopus.com/inward/record.url?scp=85212571098&partnerID=8YFLogxK
U2 - 10.1016/j.oceaneng.2024.120064
DO - 10.1016/j.oceaneng.2024.120064
M3 - Article
AN - SCOPUS:85212571098
SN - 0029-8018
VL - 318
JO - Ocean Engineering
JF - Ocean Engineering
M1 - 120064
ER -