Effect on surface ship interference on adaptive beamforming for the shallow water array performance (SWAP) project

2007 ◽  
Vol 122 (5) ◽  
pp. 3022 ◽  
Author(s):  
Richard L. Campbell ◽  
Lisa M. Zurk
Keyword(s):  
Shallow Water ◽  
Adaptive Beamforming ◽  
Surface Ship ◽  
Array Performance

Investigation of Sinkage and Trim by Ships in Shallow Water Based on Overset Grid

2015 ◽  
Vol 713-715 ◽  
pp. 2126-2132
Author(s):  
Da Ming Sun ◽  
Ji Yong Liu ◽  
Qing Wen Kong
Keyword(s):  
Shallow Water ◽  
Equations Of Motion ◽  
Navier Stokes ◽  
Overset Grid ◽  
Ship Hulls ◽  
Surface Ship ◽  
Solving Equations ◽  
Sinkage And Trim ◽  
Volume Method ◽  
Good Agreement

A study on the navigation behavior for ships in shallow water had been carried out on CFD. The problem of surface ship hulls free of sinkage and trim in shallow water is analyzed numerically by simultaneously solving equations of the Reynolds averaged Navier-Stokes (RANS). The computations, based on the single-phase level set and overset grid, are discretized by finite volume method (FVM). An earth-based reference system is used for the solution to the fluid flow, while a ship-based reference is used to compute the rigid-body equations of motion. A S60 CB=0.6 ship model is taken as an example to the numerical simulation. Numerical results of the sinkage and trim of the seven Froude Numbers (Fn=0.5~0.8) are compared against experimental data, which have a good agreement.

Effects of wind waves on horizontal array performance in shallow-water conditions

2017 ◽  
Vol 63 (5) ◽  
pp. 542-552 ◽  
Author(s):  
N. A. Zavol’skii ◽  
A. I. Malekhanov ◽  
M. A. Raevskii ◽  
A. V. Smirnov
Keyword(s):  
Shallow Water ◽  
Wind Waves ◽  
Water Conditions ◽  
Array Performance ◽  
Horizontal Array

Improving Sonar Performance in Shallow Water Using Adaptive Beamforming

2013 ◽  
Vol 38 (2) ◽  
pp. 297-307 ◽  
Author(s):  
Ann Elisabeth Albright Blomberg ◽  
Andreas Austeng ◽  
Roy Edgar Hansen ◽  
Stig Asle Vaksvik Synnes
Keyword(s):  
Shallow Water ◽  
Adaptive Beamforming
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