Concept
Acoustic wave equation
Publications associées (18)
A graduate laboratory experiment to study the dynamics of an acoustically levitated particle
Mahmut Selman Sakar, Lorenzo Francesco John Noseda, Amit Yedidia Dolev, Bora Yalcin
The comprehension of physical wave phenomena is imperative for students in the fields of engineering and basic sciences. Laboratory experiments that involve generation of acoustic waves can be used to explain advanced nonlinear wave phenomena. Acoustic lev ...
2023Partial discharge localization in power transformers using acoustic time reversal
Marcos Rubinstein, Mohammad Azadifar, Hamidreza Karami, Florent Quentin Aviolat
The localization of partial discharges (PD) is important to monitor the conditioning of high voltage insulator materials. One of the key components in power grids is the high power transformer. Localization of PDs in these pieces of equipment can increase ...
Elsevier2022Coupled-mode theory for stationary and nonstationary resonant sound propagation
Romain Christophe Rémy Fleury, Theodoros Koutserimpas
In this paper, we present a complete analytical derivation of the equations used for stationary and nonstationary wave systems regarding resonant sound transmission and reflection described by the phenomenological coupled-mode theory. We calculate the prop ...
2019Generation of acoustic helical wavefronts using metasurfaces
Juan Ramon Mosig, Hervé Lissek, Seyyed Hussein Seyyed Esfahlani
It has been shown that acoustic waves with helical wavefronts can carry angular momentum, which can be transmitted towards a propagating medium. Such a wave field can be achieved by using a planar array of electroacoustic transducers, forming a given spati ...
2017Parity-Time Symmetry in Acoustics: Theory, Devices, and Potential Applications
Parity-time (PT) symmetric systems based on bal- anced distributions of gain and loss have attracted significant attention in wave physics, enabling the possibility of compen- sating material losses in photonic systems, and of inducing ex- ceptional scatte ...
Institute of Electrical and Electronics Engineers2016Finite Element Modeling of Acoustic Shielding via Phononic Crystal structures
Clémentine Sophie Sarah Lipp, Andrea Lozzi
Quality factor of Contour Mode Resonators (CMR) are mainly affected by energy losses due to acoustic waves leaving the resonator through the anchors. An engineering of the anchors in order to create a periodic variation in the acoustic impedance of the mat ...
2016A mathematical and numerical framework for magnetoacoustic tomography with magnetic induction
We provide a mathematical analysis and a numerical framework for magnetoacoustic tomography with magnetic induction. The imaging problem is to reconstruct the conductivity distribution of biological tissue from measurements of the Lorentz force induced tis ...
Elsevier2015