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Multiphase Science and Technology
SJR: 0.183 SNIP: 0.483 CiteScore™: 0.5

ISSN Imprimir: 0276-1459
ISSN On-line: 1943-6181

Multiphase Science and Technology

DOI: 10.1615/MultScienTechn.v16.i1-3.340
pages 273-280

TEST-CASE NO 36: KELVIN-HELMHOLTZ INSTABILITY (PA)

Iztok Tiselj
Reactor Engineering Division, Institut Jozef Stefan, Slovenia
L. Strubelj
"Jozef Stefan" Institute, Jamova 39, 1000 Ljubljana, Slovenia
Ivan Bajsic
Laboratory of Measurements in Process Engineering, Faculty of Mechanical Engineering, Askerceva 6, Ljubljana, Slovenia

RESUMO

The geometry of the experiment proposed as a benchmark is a glass channel of rectangular cross section that contains two immiscible fluid of different densities. The channel is suddenly tilted at a small angle from the horizontal and a Kelvin-Helmholtz instability develops under certain conditions. It is suggested to compare the numerical simulation with the experimental values of the most unstable wave number, the starting time and the growth rate of the instability, and the wave speed.


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