Universal velocity profile for bubbly flow in the boundary layer

• Autorzy: Mikielewicz D.
• Języki publikacji: EN

Abstrakty

EN

In the work presented is a new approach to modelling the bubble flow in a boundary layer. The approach is based on summation of the dissipation energy coming from the shearing turbulent flow in the absence of bubbles and the dissipation contribution from the bubble motion. As a result we obtain the shear stress of equivalent single phase turbulent flow. An approximate solution to the model has been given in a form of an explicit differential equation, which can be solved with assumption of constant or variable void fraction distribution. Velocity distributions calculated using the new model have been compared against the experimental data of turbulent bubble flows with small void fraction. A good consistency of calculations performed using a new model with experiment has been obtained.

Słowa kluczowe

EN

boundary layer; bubbly flow; hydrodynamics

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2000
• Tom: Vol. 21, nr 3-4
• Strony: 117--132
• Opis fizyczny: Bibliogr. 21 poz.,Rys., wykr.,

Twórcy

autor

Mikielewicz D.

• Technical Uuniversity of Gdańsk, Faculty of Mechanical Engineering, 80-952 Gdańsk, Narutowicza 11/12

Bibliografia

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