Akustične metatekočine s splošnimi makromolekularnimi oscilatorji

Draškovič - Bračun, Aljaž (author), Svenšek, Daniel (mentor), Potisk, Tilen (co-mentor)

Predstavljena je osnovna kontinuumska fizika delovanja akustične metatekočine. Rešen je problem lastnih nihanj prostega diskretnega mikrooscilatorja, ki služi kot model osnovnega gradnika metatekočine. Oscilacije so nato sklopljene s splošno rešitvijo potencialnega toka v okolišnji tekočini. Predstavljena je frekvenčna odvisnost efektivne stisljivosti.

• Language: Slovenian
• Keywords: akustika, metamaterial, metatekočina, polimer, makromolekula.
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FMF - Faculty of Mathematics and Physics
• Year: 2020
• PID: 20.500.12556/RUL-119934
• COBISS.SI-ID: 30072323
• Publication date in RUL: 13.09.2020

Secondary language

• Language: English
• Title: Acoustic metafluids with general macromolecular oscillators

Abstract

The fundamental physics of an acoustic metafluid in the continuum limit is presented. The eigenvalue problem of a discrete microoscillator that serves as an elementary building block of the metafluid is solved. Oscillations are then coupled with the general solution of the potential flow in the sorrounding liquid. The frequency dependence of the effective compressibility is presented.

• Keywords: acoustics, metamaterial, metafluid, polymer, macromolecule.