TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Numerical simulation of acoustic signal propagation in underwater acoustic duct



Full text article ( in russian)

Year

 
2021

Issue

 
396

Volume

 
2

Pages

 
122-133

Caption

 
Numerical simulation of acoustic signal propagation in underwater acoustic duct

Authors

 
Legusha F., Popov Yu.

Keywords

 
acoustic, wave propagation, range of angles.

DOI

 
10.24937/2542-2324-2021-2-396-122-133

Summary

 
Object and purpose of research. The progress in numerical simulation methods significantly widens the capabilities of theoretical analysis in the tasks requiring extensive calculations and input data sets, like sound propagation at sea. This paper discusses the feasibility of a numerical model describing the physics of acoustic signal propagation in a deepwater channel.
Subject matter and methods.Acoustic signal calculation is performed as per the ray-path theory with a numerical model taking into account depth-wise variations of sound velocity and seabed parameters
Main results. It was shown that depending on the vertical distribution of sound speed, the source depth and distance, the acoustic wave propagation direction can change over significant range of angles the in vertical plane. In this regard it is advisable to calculate the real target force of an object of complex geometry not only from heading angle in horizontal plane but also in terms of the possible range of angles in the vertical plane
Conclusion. Model-analyzed angles range of long-range wave propagation may be used for change estimation of object target force characteristics. Practical significance of the study lies in improving the methods of calculation of the real target force of complex shape objects in terms of state-of the art capabilities of simulating the propagation of acoustic signals conditions in the ocean.

Rubrics

 
Ship signatures

Back to the list



 





 
Login:
Password:
Register
Forgot your password?


Last issues

All rights reserved © Krylov state research centre, 2017 — 2021


ISSN (print) 2542-2324 / ISSN (online) 2618-8244

Address: Moskovskoye shosse, 44, Saint-Petersburg, 196158

Phone: +7(812) 415-49-80