Force analysisi for isolated bubbles growing from smooth and evaporator tubes

• Autorzy: Chen Y. , Groll M. , Mertz R. , Kulenovic R.
• Języki publikacji: EN

Abstrakty

EN

Various forces acting on a bubble growing on a horizontal smooth and enhanced tube have been evaluated by using the measured geometric bubble data. Great effort has been made to accurately evaluate the dynamic forces. It has been shown that the dynamic forces play a more important role in the bubble growth on an enhanced surface than on a smooth surface. A correlation for predicting the bubble departure diameter from an enhanced tube has been derived from the force balance. This correlation has a form similar to that commonly used for smooth tubes while baring a different physical meaning.

Słowa kluczowe

EN

force; bubble dynamics; enhanced tube

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2003
• Tom: nr 112
• Strony: 57--74
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Chen Y.

• Institute of Nuclear Technology and Energy Systems (IKE), University of Stuttgart, Germany

autor

Groll M.

• Institute of Nuclear Technology and Energy Systems (IKE), University of Stuttgart, Germany

autor

Mertz R.

• Institute of Nuclear Technology and Energy Systems (IKE), University of Stuttgart, Germany

autor

Kulenovic R.

• Institute of Nuclear Technology and Energy Systems (IKE), University of Stuttgart, Germany

Bibliografia

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