Izvorni znanstveni članak
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
; Sveučilište u Zagrebu Fakultet strojarstva i brodogradnje, Ivana Lučića 5, 10000 Zagreb
Nastia Degiuli
orcid.org/0000-0003-1596-7081
; Sveučilište u Zagrebu Fakultet strojarstva i brodogradnje, Ivana Lučića 5, 10000 Zagreb
Ivana Martić
; Sveučilište u Zagrebu Fakultet strojarstva i brodogradnje, Ivana Lučića 5, 10000 Zagreb
Tomislav Staroveški
orcid.org/0000-0002-1844-5513
; Sveučilište u Zagrebu Fakultet strojarstva i brodogradnje, Ivana Lučića 5, 10000 Zagreb
Luka Berić
; Sveučilište u Zagrebu Fakultet strojarstva i brodogradnje, Ivana Lučića 5, 10000 Zagreb
Ivan Heinrich
; Sveučilište u Zagrebu Fakultet strojarstva i brodogradnje, Ivana Lučića 5, 10000 Zagreb
Sažetak
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.
Ključne riječi
CFD, EFD, open water test, containership, Wageningen-B series
Hrčak ID:
348284
URI
Datum izdavanja:
26.6.2026.
Posjeta: 0 *