Investigations of butterfly control valve flow characteristics

• Autorzy: Wojtkowiak, J. , Oleśkowicz-Popiel, C.
• Języki publikacji: EN

Abstrakty

EN

Butterfly valves are the most popular control devices in ventilation and air conditioning systems. The results of experimental and numerical (CFD) investigations of a commonly used valve having a thin-flat-sharp-edge disk and blockage ratio d/D = 0.947 have been presented. Flow characteristics, flow patterns and pressure distributions in the disk vicinity have becnshown and discussed. Steady-state, three-dimensional, laminar and turbulent flows (10(3) < Re < 2x10(4) have been analyzed. It is shown that the literature data differ considerably from our new experimental and numerical results. Based on the new results an improved flow characteristics equation K=f(d/D, a, Re) valid for dID = 0.947 has been proposed.

Słowa kluczowe

PL

zawór skrzydełkowy; charakterystyka przepływu; CFD

EN

butterfly valve; flow characteristics; experimental study; CFD

• Czasopismo: Foundations of Civil and Environmental Engineering
• Rocznik: 2006
• Tom: No. 7
• Strony: 381-395
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Wojtkowiak, J.

autor

Oleśkowicz-Popiel, C.

• Poznań University of Technology, Institute of Enviromental Engineering, Piotrowo 3a, 60-965 Poznań, Poland Tel.: +48 [phone]; fax: +48 [phone],

Bibliografia

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