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Wyszukujesz frazę "Multiphase Flow" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Cavitation phenomenon research for different flow conditions
Autorzy:
Homa, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/1178400.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
cavitation
experimental fluid mechanics
flow over a foil
multiphase flow
Opis:
Cavitation is a multiphase phenomenon including vapor bubbles creation and collapse occurring alternately at high frequency in liquid stream. Creation of bubbles is possible under low pressure conditions, which occur for example during acceleration of the liquid. The collapses of bubbles generate pressure waves which spread through the flow. Working under cavitation condition is especially dangerous for power machines such as pumps and turbines, because it can lead to serious damage of blades. To investigate cavitating flow over a foil a test rig was built. The test rig included chamber with the blade fixed to the disc that enabled to set different angles of attack. The flow rate of water was changed by means of pump’s motor variable frequency drive. As the flow rate was increased, the velocity in chamber rose and pressure dropped. This led to cavitation structures appearance and development on the suction side of the blade. For different flow conditions the pictures of cavitating flow were taken and examined. Moreover, the pressure and the inlet and outlet of the chamber were recorded, as well as the value of volumetric flow rate. That enabled to determine the cavitation number, a parameter that describes intensity of cavitation in the flow, for each case.
Źródło:
World Scientific News; 2017, 73; 1-11
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental investigation into influence of oil-in-water emulsions flow on permeability of porous bed
Autorzy:
Błaszczyk, Mariola
Sęk, Jerzy
Przybysz, Łukasz
Pacholski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1178549.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
emulsions
multiphase flow
oil-in-water
porous bed permeability
Opis:
Emulsions are interesting dispersed systems that are necessary for a number of technological processes. Their flow through porous structures have many applications in the field of chemical engineering. Enhanced Oil Recovery (EOR) techniques, soil remediation and various treatment methods of oily wastewater are good examples of emulsion flow in porous structure. The phenomenon of dispersed system flow through porous media is not easy to describe, mainly because of rheological behavior of emulsions and porous structure properties. During two phase flow of oil and water through porous bed it is possible to observe the interception of oil to porous structure, as well as filtration of oil in pores. In this study, we tried to examine the influence of the fraction size as well as migration process history on permeability of porous bed.
Źródło:
World Scientific News; 2017, 70, 2; 241-251
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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