TY  - JOUR
TT  - An Adjoint Numerical / Empirical Approach to Predict the Total Resistance of Ships
AU  - Sukas, Hulya
AU  - Kantaroglu, Muhittin
AU  - Kinaci, Omer Kemal
PY  - 2017
DA  - July
JF  - Gemi ve Deniz Teknolojisi
JO  - GDT
PB  - TMMOB Gemi Mühendisleri Odası
WT  - DergiPark
SN  - 1300-1973
SP  - 31
EP  - 44
IS  - 208
KW  - ship resistance
KW  - CFD
KW  - Hughes approach
KW  - Holtrop-Mennen
N2  - This study aims to propose afast calculation method to evaluate the total resistance of a traditional shiphull form. It became a common knowledge nowadays that the computational fluiddynamics (CFD) approach is robust in calculating the frictional resistance componentof a ship with double body flow solutions. Modeling of the free surface isstill a problematic issue due to the mathematical background of the Volume ofFluid (VOF) approach and even if a good match is obtained with experiments,these multiphase computations consume a lot of time and need highercomputational power. To circumvent this problem, this study proposes a hybridCFD-empirical approach. The results of the single phase computations obtainedby CFD is coupled with the empirical approach of Holtrop-Mennen. The frictionaland viscous pressure resistances of a benchmark ship (Duisburg Test Case – DTC)were calculated by CFD and using the wave resistance values of theHoltrop-Mennen resistance calculation method, the total resistance wasobtained. To assess double body solutions dominated by viscosity, two differentturbulence models were evaluated in the process. It was found out that k-omegaturbulence model generated slightly better results compared to the k-epsilon accordingto the reference experiments.
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CR  - Sukas, O.F., Kinaci, O.K., Bal, S., (2016). Prediction of wave resistance by a Reynolds-averaged Navier Stokes equation-based computational fluid dynamics approach. Proceedings of the Institution of Mechanical Engineers – Part M: Journal of Engineering for the Maritime Environment, 230(3), pp. 531-548.
UR  - https://dergipark.org.tr/en/pub/gdt/article/332178
L1  - https://dergipark.org.tr/en/download/article-file/330890
ER  -