Numerical investigation on added resistance and motions of a high-speed trimaran equipped with T-foil and stern flap in regular head and oblique waves for varying wave steepness

2021 ◽  
Vol 43 (10) ◽  
Author(s):  
Yunbo Li ◽  
Ang Li ◽  
Jiaye Gong ◽  
Zheng Fu ◽  
Kun Dai
Keyword(s):  
Numerical Investigation ◽  
High Speed ◽  
Wave Steepness ◽  
Added Resistance ◽  
Oblique Waves

Assessment of CFD for KCS Added Resistance and for ONRT Course Keeping/Speed Loss in Regular Head and Oblique Waves

2020 ◽  
pp. 333-439
Author(s):  
Frederick Stern ◽  
Hamid Sadat-Hosseini ◽  
Timur Dogan ◽  
Matteo Diez ◽  
Dong Hwan Kim ◽  
...  
Keyword(s):  
Added Resistance ◽  
Oblique Waves

scholarly journals Numerical Investigation of the Deposition Characteristics of Snow on the Bogie of a High-Speed Train

2020 ◽  
Vol 16 (1) ◽  
pp. 41-53
Author(s):  
Lu Cai ◽  
Zhen Lou ◽  
Nan Liu ◽  
Chao An ◽  
Jiye Zhang
Keyword(s):  
Numerical Investigation ◽  
High Speed ◽  
High Speed Train

NUMERICAL PREDICTION OF VERTICAL SHIP MOTIONS AND ADDED RESISTANCE

2021 ◽  
Vol 159 (A4) ◽  
Author(s):  
F Cakici ◽  
E Kahramanoglu ◽  
A D Alkan
Keyword(s):  
Deep Water ◽  
High Speed ◽  
Computer Experiments ◽  
Navier Stokes ◽  
Ship Motions ◽  
Added Resistance ◽  
Strip Theory ◽  
Head Waves ◽  
Computational Fluid Dynamics Cfd ◽  
Volume Method

Along with the development of computer technology, the capability of Computational Fluid Dynamics (CFD) to conduct ‘virtual computer experiments’ has increased. CFD tools have become the most important tools for researchers to deal with several complex problems. In this study, the viscous approach called URANS (Unsteady Reynolds Averaged Navier-Stokes) which has a fully non-linear base has been used to solve the vertical ship motions and added resistance problems in head waves. In the solution strategy, the FVM (Finite Volume Method) is used that enables numerical discretization. The ship model DTMB 5512 has been chosen for a series of computational studies at Fn=0.41 representing a high speed case. Firstly, by using CFD tools the TF (Transfer Function) graphs for the coupled heave- pitch motions in deep water have been generated and then comparisons have been made with IIHR (Iowa Institute of Hydraulic Research) experimental results and ordinary strip theory outputs. In the latter step, TF graphs of added resistance for deep water have been generated by using CFD and comparisons have been made only with strip theory.

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