Studies of flow and cavitation in hydraulic lift valve

• Autorzy: Kudźma Z. , Stosiak M.

Identyfikatory

DOI

10.1016/j.acme.2015.05.003

• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of experimental studies of the phenomena connected with the flow of the working medium in the throttling orifice of the conical head-bevelled or feather-edged seat unit. The critical Reynolds number demarcating the laminar flow from the turbulent flow for the particular conical head-bevelled or feather-edged seat units has been determined on the basis of visualization studies. The dependence between flow ratio Cv and the Reynolds number has been determined for the dilation angle of the conical valve heads and the length of the seat generating line. Acoustic and cavitation tests have shown that valve heads with the smallest dilation angle and the highest critical velocity are characterized by the lowest level of noise in the throttling orifice at which cavitation occurs.

Słowa kluczowe

EN

lift valves; laminar and turbulent flow; cavitation; noise

PL

przepływ turbulentny; kawitacja akustyczna; hałas

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2015
• Tom: Vol. 15, no. 4
• Strony: 951--961
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Kudźma Z.

• Wrocław University of Technology, Faculty of Mechanical Engineering, 50-371 Wrocław, Poland

autor

Stosiak M.

• Wrocław University of Technology, Faculty of Mechanical Engineering, 50-371 Wrocław, Poland

Bibliografia

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