Acoustic Tunnelling of Internal Gravity waves in the stratified fluids
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 2018, Vol 15, Issue 0
Abstract
This paper focuses on the study of acoustic propagation of internal gravity waves which generates small scale variations through propagation and hence can obtain transmission co-efficients using N2 buoyancy frequency variation of a compressible stratified fluid for a small regions. We have also analysed the results using the asymptotic expansions for large compressible limits. The reduction of the transmission in the N2-barrier region for the density layers sandwiched along with acoustic waves is obtained through graphs for different density barrier regions. The dispersion characteristics shows the contours of the transmission in the wave number plane. The curves for ! < N0 are hyperbolic, representing internal gravity waves as these become the dispersionwaves for an incompressible fluid and the curve with ! > N0 are ellipsoids which represent the acoustic gravity or infrasonic waves for the cut off frequency
Authors and Affiliations
Gangamani Hv
Keywords
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- EP ID EP653469
- DOI 10.24297/jap.v15i0.8051
- Views 63
- Downloads 0
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