Original scientific paper
https://doi.org/10.65776/ep.20.4.2
Comparison of open water characteristics of scanned and generated propeller
Carlo Giorgio Grlj
orcid.org/0000-0001-5939-0275
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, Zagreb, 10000, Croatia
Nastia Degiuli
orcid.org/0000-0003-1596-7081
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, Zagreb, 10000, Croatia
Ivana Martić
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, Zagreb, 10000, Croatia
Tomislav Staroveški
orcid.org/0000-0002-1844-5513
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, Zagreb, 10000, Croatia
Luka Berić
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, Zagreb, 10000, Croatia
Ivan Heinrich
; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, Zagreb, 10000, Croatia
Abstract
This study presents a numerical investigation of open water characteristics using propeller geometry obtained through different approaches: automated approach with an online generator and three-dimensional scanning. The main objective is to evaluate the influence of the chosen geometric modelling approach on the predicted propeller open water characteristics. The turbulent flow around the propeller is modelled using the steady incompressible Reynolds Averaged Navier-Stokes equations and Shear Stress Transport k-ω turbulence model in combination with the γ-Reθt transition model, enabling the simulation of both laminar and turbulent flow. Numerical simulations are performed using the commercial Computational Fluid Dynamics software STAR-CCM+ 2310. The methodology follows the recommendations of the International Towing Tank Conference, and verification of the numerical results is carried out through grid independence studies. Validation of the numerical results is performed by comparison with experimental open water data obtained at the Brodarski Institute in Zagreb. The open water characteristics predicted using the scanned and generated propeller are compared in terms of thrust, torque, and open water efficiency. The results provide insight into the sensitivity of propeller performance to geometric modelling approach and highlight the importance of accurate geometry representation in numerical analyses.
Keywords
CFD, EFD, open water test, containership, Wageningen-B series
Hrčak ID:
348284
URI
Publication date:
26.6.2026.
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