1- Iran Society of Acoustical Sciences , rezaee.mhmd@gmail.com
2- National Infrasound Laboratory
3- Amirkabir University of Technology
Abstract: (411 Views)
Due to lower cost compared to field measurement, simulation of sound propagation is considerably favorable for acoustic researchers. One of most optimized methods in this regard is PE (paraboloic Equation), which gives detailed low cost results especially in the low and mid frequencies. On the other hand, most of the human interaction with the water bodies are in the so called shallow water region, where PE is the most common method of acoustic simulation. In this study, effects of environmental parameters on transmission loss are investigated in the range of the scale of few tens of kilometers. The results show subsurface flows and sound speed profile variations in the course of the range, have the least effects and bottom properties, specifically the attenuation factor, are the most effective parameter in the low frequency sound propagation. On the other side, in the range of higher frequencies (more than 1000 Hz), seasonal variation of sound speed profile has the most efficient effect
Article Type:
Original Research |
Subject:
Experimental Fluid Mechanics Received: 2024/04/21 | Accepted: 2024/09/3 | Published: 2024/06/30