Oscillations and collective behavior in convective flows
نویسندگان
چکیده
Oscillations and collective behavior in convection-driven fluid columns are investigated discussed analogy with similar phenomenon observed for the flickering flames of candle bundles. Experimentally, it is shown that an ascending circular helium gas column performs oscillation which several aspects to diffusion flames. Increasing nozzle diameter leads a decrease frequency, while increasing flow rate results increase this frequency. For oscillating at nearby frequency placed close each other, anti-phase synchronization beating phenomena observed. A toy-model based on elementary dynamics describes oscillations frequencies proper trend values right order magnitude.
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ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2021
ISSN: ['1527-2435', '1089-7666', '1070-6631']
DOI: https://doi.org/10.1063/5.0073347