scholarly journals Three-dimensional coupled mode analysis of internal-wave acoustic ducts

2014 ◽  
Vol 135 (5) ◽  
pp. 2497-2512 ◽  
Author(s):  
Alexey A. Shmelev ◽  
James F. Lynch ◽  
Ying-Tsong Lin ◽  
Henrik Schmidt
Keyword(s):  
Internal Wave ◽  
Three Dimensional ◽  
Mode Analysis ◽  
Coupled Mode ◽  
Acoustic Ducts

Low-Frequency Acoustic Propagation Through Crossing Internal Waves in Shallow Water

2020 ◽  
Vol 28 (03) ◽  
pp. 1950013
Author(s):  
Alexey Shmelev ◽  
Ying-Tsong Lin ◽  
James Lynch
Keyword(s):  
Internal Wave ◽  
Shallow Water ◽  
Internal Waves ◽  
Three Dimensional ◽  
Low Frequency ◽  
Acoustic Energy ◽  
Full Field ◽  
Wave Trains ◽  
Acoustic Ducts ◽  
Numerical Approaches

Crossing internal wave trains are commonly observed in continental shelf shallow water. In this paper, we study the effects of crossing internal wave structures on three-dimensional acoustic ducts with both theoretical and numerical approaches. We show that, depending on the crossing angle, acoustic energy, which is trapped laterally between internal waves of one train, can be either scattered, cross-ducted or reflected by the internal waves in the crossing train. We describe the governing physics of these effects and illustrate them for selected internal wave scenarios using full-field numerical simulations.

Coupled mode analysis of finlines on anisotropic substrates

1989 ◽  
Vol 25 (20) ◽  
pp. 1399 ◽  
Author(s):  
P.V. Ramakrishna ◽  
D. Chadha
Keyword(s):  
Mode Analysis ◽  
Coupled Mode ◽  
Anisotropic Substrates

A Novel Approach to Coupled-Mode Analysis of Geometric Deformations in Reciprocal Waveguides

2020 ◽  
Author(s):  
Gianluca Guerra ◽  
Seyed M. Abokhamis Mousavi ◽  
Austin Taranta ◽  
Eric Numkam Fokoua ◽  
Marco Santagiustina ◽  
...  
Keyword(s):  
Mode Analysis ◽  
Coupled Mode ◽  
Novel Approach

Coupled mode analysis for graded index multi-waveguide systems

2013 ◽  
Author(s):  
Krishna C. Patra ◽  
Sangeeta Srivastava ◽  
Enakshi K. Sharma
Keyword(s):  
Mode Analysis ◽  
Graded Index ◽  
Coupled Mode

Coupled mode analysis of light modulation in dielectric waveguides

1975 ◽  
Vol 5 (4) ◽  
pp. 307-315 ◽  
Author(s):  
Masayuki Izutsu ◽  
Tadasi Sueta
Keyword(s):  
Mode Analysis ◽  
Dielectric Waveguides ◽  
Light Modulation ◽  
Coupled Mode

Temporal coupled mode analysis of one-dimensional magneto-photonic crystals with cavity structures

2016 ◽  
Vol 419 ◽  
pp. 84-91 ◽  
Author(s):  
Behnam Saghirzadeh Darki ◽  
Abolghasem Zeidaabadi Nezhad ◽  
Zaker Hossein Firouzeh
Keyword(s):  
Photonic Crystals ◽  
Mode Analysis ◽  
One Dimensional ◽  
Coupled Mode

A Vibrational Mode Analysis of Free Finite-Length Thick Cylinders Using the Finite Element Method

1998 ◽  
Vol 120 (2) ◽  
pp. 371-377 ◽  
Author(s):  
Huan Wang ◽  
Keith Williams ◽  
Wei Guan
Keyword(s):  
Finite Length ◽  
Natural Frequencies ◽  
Three Dimensional ◽  
Mode Analysis ◽  
Mode Shapes ◽  
Vibrational Modes ◽  
The Finite Element Method ◽  
Cylinder Length ◽  
Radial Thickness ◽  
Thick Cylinder

Based on their three-dimensional mode shapes, the vibrational modes of free finite length thick cylinders can be classified into 6 categories, consisting of pure radial, radial motion with radial shearing, extensional, circumferential, axial bending, and global modes. This classification, together with the numbers of both the circumferential and the longitudinal nodes, is sufficient to identify each mode of a finite length thick cylinder. The mode classification was verified experimentally by measurements on a thick cylinder. According to the displacement distribution ratio in the radial, tangential and longitudinal directions, the effect of varying cylinder length on the vibrational modes is such that all the modes can be broadly categorized as either pure radial modes, or non pure radial modes. The natural frequencies and mode shapes of the former are dependent upon only the radial dimensions of the models, while the natural frequencies and mode shapes of the latter are dependent upon both the axial length and radial thickness.

Sign in / Sign up

Export Citation Format

Share Document