Multifractal properties of large bubble paths in a single bubble column

• Autorzy: Mosdorf R. , Wyszkowski T. , Dąbrowski K.
• Języki publikacji: EN

Abstrakty

EN

In the paper the paths of bubbles emitted from the brass nozzle with inner diameter equal to 1.6 mm have been analyzed. The mean frequency of bubble departure was in the range from 2 to 65.1 Hz. Bubble paths have been recorded using a high speed camera. The image analysis technique has been used to obtain the bubble paths for different mean frequencies of bubble departures. The multifractal analysis (WTMM - wavelet transform modulus maxima methodology) has been used to investigate the properties of bubble paths. It has been shown that bubble paths are the multifractals and the influence of previously departing bubbles on bubble trajectory is significant for bubble departure frequency f[b] > 30 Hz.

Słowa kluczowe

EN

bubble column; bubble dynamics; WTMM method

PL

kolumna barbotażowa; metoda WTMM; pęcherze

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2011
• Tom: Vol. 32, no. 1
• Strony: 3--20
• Opis fizyczny: Bibliogr. 30 poz.,

Twórcy

autor

Mosdorf R.

autor

Wyszkowski T.

autor

Dąbrowski K.

• Bialystok Technical University, Faculty of Mechanical Engineering, Wiejska 45C, 15-351 Białystok, Poland,

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