0600618 - MÚ 2025 RIV CZ eng C - Conference Paper (international conference)
Filimonova, N. - Kellnerová, Radka - Bodnár, Tomáš - Friedmann, E.
Synchronization of airflows at varying heights.
Topical Problems of Fluid Mechanics. Prague: Institute of Thermomechanics AS CR, v. v. i., 2024 - (Šimurda, D.; Bodnár, T.), s. 38-45. ISBN 978-80-87012-88-8. ISSN 2336-5781.
[Topical Problems of Fluid Mechanics 2024. Prague (CZ), 21.02.2024-23.02.2024]
Grant - others:AV ČR(CZ) AP2101
Program: Akademická prémie - Praemium Academiae
Institutional support: RVO:67985840
Keywords : Krawtchouk functions * wavelet * turbulent flow * uncertainty principle
OECD category: Pure mathematics
Result website:
https://doi.org/10.14311/TPFM.2024.006DOI: https://doi.org/10.14311/TPFM.2024.006

We propose a method to study the dynamics of energetic events in airflows at different heights. The method is based on a mathematical model for invariant pattern recognition by a visual system, which is combined with a wavelet analysis method. Here we use the first four Krawtchoukfunctions as the mother wavelets. The method allows to determine the time-frequency characteristics of the local impulse components for continuous signals. These extracted impulsecomponents of airflow velocities can be effectively utilized in cross-correlation analysis aimed at identifying potential synchronizations among airflows at different heights.
Permanent Link: https://hdl.handle.net/11104/0357928