scholarly journals Acoustic interaction with a propagating internal soliton wave packet in shallow water

1995 ◽  
Vol 97 (5) ◽  
pp. 3313-3313
Author(s):  
Michael K. Broadhead
Keyword(s):  
Wave Packet ◽  
Shallow Water ◽  
Acoustic Interaction ◽  
Internal Soliton

scholarly journals Equatorial Jets in Decaying Shallow-Water Turbulence on a Rotating Sphere

2007 ◽  
Vol 64 (9) ◽  
pp. 3340-3353 ◽  
Author(s):  
Yuji Kitamura ◽  
Keiichi Ishioka
Keyword(s):  
Wave Packet ◽  
Shallow Water ◽  
Equatorial Region ◽  
Equatorial Waves ◽  
Mean Flow ◽  
Wave Interactions ◽  
Rotating Sphere ◽  
Flow Acceleration ◽  
Water Turbulence ◽  
Ensemble Experiments

Abstract Ensemble experiments of decaying shallow-water turbulence on a rotating sphere are performed to confirm the robustness of the emergence of an equatorial jet. While previous studies have reported that the equatorial jets emerging in shallow-water turbulence are always retrograde, predominance of a prograde jet, although less likely, was also found in the present ensemble experiments. Furthermore, a zonal-mean flow induced by wave–wave interactions was examined using a weak nonlinear model to investigate the acceleration mechanisms of the equatorial jet. The second-order acceleration is induced by the Rossby and mixed Rossby–gravity waves and its mechanisms can be categorized into two types. First, the local meridional wavenumber of a Rossby wave packet propagating toward the equator increases because of meridional variation of the Rossby deformation radius and/or the retrograde zonal-mean flow, resulting in a dissipation of the wave packet in the equatorial region. This mechanism always contributes to retrograde acceleration of an equatorial jet. Another mechanism is derived from the tilting of equatorial waves due to meridional shear of the zonal-mean flow. In this case, zonal-mean flow acceleration contributes to the intensification of a given basic flow.

Time‐frequency variability of broadband sound propagation through shallow water internal soliton

2003 ◽  
Vol 114 (4) ◽  
pp. 2376-2377
Author(s):  
Boris Katsnelson ◽  
Sergey Pereselkov ◽  
Mohsen Badiey ◽  
James Lynch
Keyword(s):  
Shallow Water ◽  
Sound Propagation ◽  
Time Frequency ◽  
Broadband Sound ◽  
Internal Soliton

Investigation of acoustic radiator affecting bubble-acoustic interaction in ultrasonic wave-assisted UWW at shallow water

2019 ◽  
Vol 37 ◽  
pp. 563-577 ◽  
Author(s):  
Jianfeng Wang ◽  
Qingjie Sun ◽  
Jiangkun Ma ◽  
Junbo Teng ◽  
Peng Jin ◽  
...  
Keyword(s):  
Shallow Water ◽  
Ultrasonic Wave ◽  
Acoustic Interaction ◽  
Acoustic Radiator

Wave packet focusing in shallow water

2020 ◽  
Vol 62 (2) ◽  
pp. 336-349
Author(s):  
Yasunori Watanabe ◽  
Yosuke Tsuda ◽  
Ayumi Saruwatari
Keyword(s):  
Wave Packet ◽  
Shallow Water

Sound field temporal fluctuations due to mode coupling in shallow water with internal soliton

2005 ◽  
Vol 118 (3) ◽  
pp. 2003-2004
Author(s):  
Mohsen Badiey ◽  
Valery Grigorev ◽  
Boris Katsnelson ◽  
James Lynch
Keyword(s):  
Shallow Water ◽  
Mode Coupling ◽  
Sound Field ◽  
Temporal Fluctuations ◽  
Internal Soliton
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