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Wyszukujesz frazę "Rząsa, R. M." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Comparison of selected theoretical models of bubble formation and experimental results
Autorzy:
Rząsa, M. R.
Powiązania:
https://bibliotekanauki.pl/articles/240032.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bubble formation
optical tomography
bubble flow measurement
tworzenie pęcherzy
tomografia optyczna
pomiar przepływu
Opis:
Designers of all types of equipment applied in oxygenation and aeration need to get to know the mechanism behind the gas bubble formation. This paper presents a measurement method used for determination of parameters of bubbles forming at jet attachment from which the bubles are displaced upward. The measuring system is based on an optical tomograph containing five projections. An image from the tomograph contains shapes of the forming bubbles and determine their volumes and formation rate. Additionally, this paper presents selected theoretical models known from literature. The measurement results have been compared with simple theoretical models predictions. The paper also contains a study of the potential to apply the presented method for determination of bubble structures and observation of intermediate states.
Źródło:
Archives of Thermodynamics; 2014, 35, 2; 21-36
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection of optical to mography parameters for gas bubble shape analysis
Autorzy:
Rząsa, M.R.
Powiązania:
https://bibliotekanauki.pl/articles/185491.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bubble shape
gas flow
optical
tomography
two-phase measurement
kształt bańki
przepływ gazu
tomografia
pomiar dwufazowy
Opis:
An optical tomograph in which a tested object is illuminated from five directions has been presented in the paper. The measurements of luminous intensity after changing into discrete signals (0 or 1) in the detectors equipped with 64 optical sensors were subjected to reconstruction by means of the matrix algorithm. Detailed description of the measuring sensor, as well as the principles of operation of the electronic system, has been given in the paper. Optical phenomena occurring at the phase boundary while transmitted through the sensor wall and phenomena inside the measuring space have also been taken into account. The method of the sensor calibration has been analysed and a way of technical solution of the problem under consideration has been discussed. The elaborated method has been tested using objects of the known shape and dimensions. It was found that reconstruction of the shapes of moving bubbles and determination of their main parameters is also possible with a reasonable accuracy.
Źródło:
Chemical and Process Engineering; 2014, 35, 1; 19-33
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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