STABILITY OF SWIRLING ANNULAR FLOW

0332953 - ÚT 2010 RIV TW eng C - Konferenční příspěvek (zahraniční konf.)
Maršík, František - Trávníček, Zdeněk - Novotný, Pavel - Werner, E.
STABILITY OF SWIRLING ANNULAR FLOW.
The Proceedings of The 7th Pacific Symposium on Flow Visualization and Image Processing (PSFVIP-7 2009). Kaohsiung: National Pingtung University of Science and Technolog, 2009 - (Tai, C.), s. 32-32. ISBN N.
[Pacific Symposium on Flow Visualization and Image Processing /7./ (PSFVIP-7 2009). Kaohsiung (TW), 16.11.2009-19.11.2009]
Grant CEP: GA AV ČR(CZ) IAA200760801; GA MŠMT(CZ) 1M06031
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: flow stability * swirling jet * thermodynamic stability
Kód oboru RIV: BK - Mechanika tekutin

The influence of rotation on the stability of coaxial flow between steady cylinders is still an open question. The pattern of swirling annular jet depends strongly on the quality of the issuing flow. Our new approach to the fluid flow stability problem is based on the attenuation of the kinetic energy of disturbances. This concept follows from the thermodynamic stability conditions. To show the ability of this new concept we concentrate on an isothermal swirl flow in coaxial tube with constant density and viscosity.
Trvalý link: http://hdl.handle.net/11104/0178059