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Analog gravity in nonisentropic fluids (CROSBI ID 251808)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Bilić, Nevenko ; Nikolić, Hrvoje Analog gravity in nonisentropic fluids // Classical and quantum gravity, 35 (2018), 13; 135008, 14. doi: 10.1088/1361-6382/aac5c6

Podaci o odgovornosti

Bilić, Nevenko ; Nikolić, Hrvoje

engleski

Analog gravity in nonisentropic fluids

The analog acoustic metric has been originally derived for adiabatic acoustic perturbations propagating in an isentropic irrotational ideal fluid. In the framework of a Lagrangian hydrodynamic description we demonstrate that under certain conditions the usual acoustic metric can be derived for nonisentropic fluids. In a special case when the pressure takes a special form and the nonadiabatic perturbations are neglected the adiabatic acoustic perturbations corresponding to massless phonons propagate in an analog metric of the usual type.

analog gravity ; nonisentropic flow ; Lagrangian fluid dynamics

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Podaci o izdanju

35 (13)

2018.

135008

14

objavljeno

0264-9381

1361-6382

10.1088/1361-6382/aac5c6

Povezanost rada

Fizika

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