Advective-Acoustic cycle in a shallow water standing accretion shock experiment

S. Sebold, F. Günzkofer, R. Arredondo, T. Höschen, U. Von Toussaint, U. Stroth, P. Manz

Research output: Contribution to journalArticlepeer-review

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Abstract

The surface height in a shallow water accretion flow experiment is measured by means of Fourier transform profilometry and the fluctuations are characterized. The shallow water analog of the standing accretion shock instability (SWASI) appears with an azimuthal mode number of one in the presence of supercritical flow in the radial direction. During the occurrence of the SWASI, surface gravity waves preferentially propagate radially outward. This is consistent with the advective-Acoustic cycle driving the shallow water analog of the standing accretion shock instability.

Original languageEnglish
Article number063103
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume102
Issue number6
DOIs
StatePublished - 10 Dec 2020

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