Banca de DEFESA: MARCOS DAVI FALCAO GADELHA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MARCOS DAVI FALCAO GADELHA
DATE: 25/02/2025
TIME: 13:30
LOCAL: remota
TITLE:

Attenuation Effects on Acoustic Wave Propagation

KEY WORDS:

Attenuation Effects, Q Factor, Acoustic Wave Propagation, Viscoacoustic Wave Propagation.

PAGES: 66
BIG AREA: Ciências Exatas e da Terra
AREA: Física
SUBÁREA: Física Geral
SPECIALTY: Física Estatística e Termodinâmica
SUMMARY:

The propagation of energy in wave form is one of nature's most elegant expressions, since it carries with it characteristics of the medium which can be investigated by different methods. In this work, we will start from an idealized scenario of acoustic wave propagation in order to transpose it into models that tend towards reality, incorporating attenuation effects, i.e. energy losses. Initially, we will study acoustic wave propagation in the time and frequency domain. Next, we will introduce viscoacoustic wave propagation, the aim of which is to make these effects explicit. In this part, we quantify the impact of attenuation on wave propagation through the Q factor. Finally, we model the pressure field in order to obtain numerical solutions to the problem and thus make the differences between propagations explicit as a function of these effects. This research contributes to a better understanding of Ondulatory Physics.

COMMITTEE MEMBERS:
Externo à Instituição - CARLOS ALEXANDRE N DA COSTA - UFRN
Presidente - 2492756 - JOAO MEDEIROS DE ARAUJO
Interno - 2411793 - LEONARDO DANTAS MACHADO
Externo à Instituição - MAURO SANTOS FERREIRA