Journal of Marine Science and Technology

Journal of Marine Science and Technology

Investigation the effect of wave length and incident angle on ship added resistance in regular wave

Document Type : Original Manuscript

Authors
Shahrzad Nikbakht 1
Ahmad Hajivand 2
Mostafa Jafarzadeh Khatibani 3
1 Department of Naval Architect, Faculty of Marine Engineering, Khoramshahr Marine Science and Technology University, Iran
2 department of Naval Architect , Faculty of Marine Engineering, Khoramshahr Marine Science and Technology University, Iran
3 Department of Naval Architect, Faculty of MArine Engineering, Khoramshahr Marine Science and Technology University
10.22113/jmst.2017.88599.2015
Abstract
Power requirements increase severely in rough weather because of added resistance induced by water wave. Amplitude of this additional resistance is between 15 to 30 percent of the ship calm water total resistance. Nowadays, one of the important issue in naval architect is to design a ship hull with minimum added resistance that produce less greenhouse gas. There are several numerical viscous and non-viscous method like strip theory, panel method and RANS method. With respect to accuracy and cost calculations, 3-D panel method is the best choice for analysis ship behavior in wave. By using frequency domain Green's function 3-D panel method added resistance of S-175 containership is computed by far filed and near field approaches. To investigate the effect of wave incident and wavelength, calculations are performed in different incident angle and wavelength. Also by using an accurate and fast empirical validated method that have recently been proposed, added resistance in head sea are calculated for different wavelength and ship speed. Far field and near field results are consistent with good accuracy. Numerical and empirical results are compared with experimental that shows high accuracy results.
Keywords
Added Resistance
Panel Method
Far Field method
Near Field Method
Empirical Method

Subjects

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  • Receive Date 20 June 2017
  • Revise Date 14 November 2017
  • Accept Date 20 November 2017
  • Publish Date 19 February 2021