Phenomenon of hydraulic jump formed on liquid layer by single-phase impinging liquid jet

• Autorzy: Gumkowski S.
• Języki publikacji: EN

Abstrakty

EN

In the paper theoretical analysis of the phenomenon of impingement of a circular liquid jet upon a plate has been carried out. In the considered case, spreading of the liquid on a plate is caused by the inertia and gravity forces. For supercritical liquid flow, in certain conditions a hydraulic jump is formed. The circular hydraulic jump exhibits behaviour quite different from that commonly observed in planar jets. In the paper a new theoretical model of the phenomena of hydraulic jump has been formulated. Theoretical treatment have been compared with own and other available experimental data.

Słowa kluczowe

EN

hydraulic jump; impinging jet

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2005
• Tom: nr 117
• Strony: 81--90
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Gumkowski S.

• Gdańsk University of Technology, Faculty of Mechanical Engineering, Narutowicza 11/12, 80-952 Gdańsk, Poland,

Bibliografia

• [1].Rymkiewicz J.: Investigations of heat transfer and splitting of a free liquid stream on a flat and cylindrical surface, Doctoral dissertation defended at IMP PAN in 1998 (in Polish).
• [2]Thomas S., Hankey W., Faghri A.: One-dimensional analysis of the hydrodynamic and thermal characteristics of thin film flows including the hydraulic jump and rotation, Transaction of the ASME, Vol. 112, August 1990.
• [3] Rahman M.M. , Hankey W.I,. Faghri A.: Analysis of the fluid flow and heat transfer in a thin liquid film in the presence and absence of gravity, Int. J. Heat Mass 'Transfer, Vol. 34, 199l.
• [4] Watson E. J.: The radial spread of liquid over a horizontal plane, J. Fluid Mech. (1964), 20, 481-499
• [5] Douglas J.F., Gasiorek J. M.,Swaffield J. A.: Fluid Mechanics, Longman, (1998)
• [6] Mikielewicz J and Mikielewicz D.: Heat transfer in fully developed laminar film formed by impinging jet, XII Sympozjum Wymiany Ciepła i Masy, AGH-Kraków 2004. (in Polish)
• [7] Liu X., Lienhard V J. H.: The hydraulic jump in circular jet impingement and in other thin liquid films, Experiments in Fluids 15, 108-116 (1993)
• [8] Craik D. D. and others: The circular hydraulic jump, J. Fluid Mech. (1981) vol. 12 pp. 347-362 .
• [9] Ishigai S. and others: Heat transfer of the impinging round water jet in the interference zone of film flow along the wall, Bulletin of the JSME, vol. 20 No 139, (1977)