Virtual Testbed: Simulation of Ocean Wave Reflection from the Ship Hull

2020 ◽  
pp. 29-39
Author(s):  
Ivan Petriakov ◽  
Alexander Degtyarev ◽  
Denis Egorov ◽  
Ivan Gankevich ◽  
Anton Gavrikov ◽  
...  
Keyword(s):  
Wave Reflection ◽  
Ship Hull ◽  
Ocean Wave ◽  
Virtual Testbed

Virtual Testbed: Simulation of Air Flow Around Ship Hull and Its Effect on Ship Motions

2020 ◽  
pp. 18-28
Author(s):  
Anton Gavrikov ◽  
Alexander Degtyarev ◽  
Denis Egorov ◽  
Ivan Gankevich ◽  
Artemii Grigorev ◽  
...  
Keyword(s):  
Air Flow ◽  
Ship Hull ◽  
Ship Motions ◽  
Virtual Testbed

Life of the ocean wave

Nature ◽  
2002 ◽  
Author(s):  
Philip Ball
Keyword(s):  
Ocean Wave

On the Effect of 2-Layer Thickness by High-Specific Gravity Armor Blocks on Wave Reflection

1999 ◽  
Author(s):  
Masahiro Ito ◽  
Yuitch Iwagaki ◽  
Hiroshi Murakami ◽  
Kenji Nemoto ◽  
Masato Yamamoto ◽  
...  
Keyword(s):  
Specific Gravity ◽  
Layer Thickness ◽  
Wave Reflection ◽  
High Specific Gravity

Tidal Inlet Current — Ocean Wave Interaction

1972 ◽  
Author(s):  
Lyndell Z. Hales ◽  
John B. Herbich
Keyword(s):  
Wave Interaction ◽  
Tidal Inlet ◽  
Ocean Wave

Detection of delamination in composites by using electromagnetic penetrating radar

2014 ◽  
Vol 5 (2) ◽  
pp. 151-156
Author(s):  
Z. Mechbal ◽  
A. Khamlichi
Keyword(s):  
Electromagnetic Wave ◽  
Electromagnetic Waves ◽  
Electromagnetic Wave Propagation ◽  
Wave Reflection ◽  
Image Features ◽  
Partial Reflection ◽  
Straight Path ◽  
Reflected Signal ◽  
Short Time ◽  
Intervening Factors

Composites made from E-glass/epoxy or aramid/epoxy are frequently used in aircraft and aerospace industries. These materials are prone to suffer from the presence of delamination, which can reduce severely the performance of aircrafts and even threaten their safety. Since electric conductivity of these composites is rather small, they can propagate electromagnetic waves. Detection of delamination damage can then be monitored by using an electromagnetic penetrating radar scanner, which consists of emitting waves having the form of short time pulses that are centered on a given work frequency. While propagating, these waves undergo partial reflection when running into an obstacle or a material discontinuity. Habitually, the radar is moved at constant speed along a straight path and the reflected signal is processed as a radargram that gives the reflected energy as function of the two-way time and the antenna position.In this work, modeling of electromagnetic wave propagation in composites made from E-glass/epoxy was performed analytically. The electromagnetic wave reflection from a delamination defect was analyzed as function of key intervening factors which include the defect extent and depth, as well as the work frequency. Various simulations were performed and the obtained results have enabled to correlate the reflection pattern image features to the actual delamination defect characteristics which can provide quantification of delamination.

Dam-Atoll for concentration and conversion of ocean wave energy

1981 ◽  
Author(s):  
T. HIGGINS ◽  
C. SHERBURNE
Keyword(s):  
Wave Energy ◽  
Ocean Wave ◽  
Ocean Wave Energy
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