scholarly journals Numerical analysis of the nonlinear free surface flow around an advancing ship using moving particle semi-implicit method

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035106
Author(s):  
CholJun Pak ◽  
PokNam Han ◽  
KwangChol Ri ◽  
YongKwang Ri ◽  
InChol Hwang
Keyword(s):  
Free Surface ◽  
Numerical Analysis ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Implicit Method ◽  
Moving Particle ◽  
Nonlinear Free Surface

Surface Ship Total Resistance Prediction Based on a Nonlinear Free Surface Potential Flow Solver and a Reynolds-Averaged Navier-Stokes Viscous Correction

2007 ◽  
Vol 51 (01) ◽  
pp. 47-64
Author(s):  
James C. Huan ◽  
Thomas T. Huang
Keyword(s):  
Free Surface ◽  
Surface Potential ◽  
Potential Flow ◽  
Free Surface Flow ◽  
Surface Flow ◽  
Navier Stokes ◽  
Total Resistance ◽  
Flow Solver ◽  
Resistance Prediction ◽  
Nonlinear Free Surface

A fast turnaround and an accurate computational fluid dynamics (CFD) approach for ship total resistance prediction is developed. The approach consists of a nonlinear free surface potential flow solver (PShip code) with a wet-or-dry transom stern model, and a Reynolds-averaged Navier-Stokes (RANS) equation solver that solves viscous free surface flow with a prescribed free surface given from the PShip. The prescribed free surface RANS predicts a viscous correction to the pressure resistance (viscous form) and viscous flow field around the hull. The viscous free surface flow solved this way avoids the time-consuming RANS iterations to resolve the free surface profile. The method, however, requires employing a flow characteristic-based nonreflecting boundary condition at the free surface. The approach can predict the components of ship resistance, the associated wave profile around the hull, and the sinkage and trim of the ship. Validation of the approach is presented with Wigley, Series 60 (CB = 0.6), and NSWCCD Model 5415 hulls. An overall accuracy of ±2% for ship total resistance prediction is achieved. The approach is applied to evaluating the effects of a stern flap on a DD 968 model on ship performance. An empirical viscous form resistance formula is also devised for a quick ship total resistance estimate.

Numerical Analysis of Free Surface Flow in Siphon Phenomenon

2003 ◽  
Vol 2003 (0) ◽  
pp. 159
Author(s):  
Fumio SHIMIZU ◽  
Kiyoshi HATAKENAKA ◽  
Kazuhiro TANAKA ◽  
Hiroshi SHIGEFUJI ◽  
Takeshi SHIMIZU
Keyword(s):  
Free Surface ◽  
Numerical Analysis ◽  
Free Surface Flow ◽  
Surface Flow

Numerical Analysis of Free Surface Flow over a Submerged Rectangular Bridge Deck

2016 ◽  
Vol 142 (12) ◽  
pp. 04016060 ◽  
Author(s):  
Chia-Ren Chu ◽  
Chun-Hsuan Chung ◽  
Tso-Ren Wu ◽  
Chung-Yue Wang
Keyword(s):  
Free Surface ◽  
Numerical Analysis ◽  
Bridge Deck ◽  
Free Surface Flow ◽  
Surface Flow
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