Instability of the flow in rotating annular cavity of aspect ratio 9

• Autorzy: Tuliszka-Sznitko E. , Zieliński A.
• Konferencja: "Modelling and Multiphase Flows in Thermo-Chemical Systems. Advanced Measurement Techniques" / sympozjum [5th; September 2nd to 4th, 2005; Stawiska near Gdansk, Poland]
• Języki publikacji: EN

Abstrakty

EN

The 3D direct numerical simulation is performed to study the isothermal and non-isothermal flow in the rotating disks annular cavity of aspect ratio 9. Identification and characterization of mechanisms, related to the laminar-turbulent process in rotating cavities, should improve the prediction methods and lead to new, more effective boundary layer control strategies. Numerical computations are based on a pseudo-spectral Chebyshev-Fourier method for solving the governing equations. The numerical computations allowed us to describe the steady axisymmetric basic state and 3D instability structures which appear in the transitional flow. The preliminary results obtained for the not-isothermal flow arc presented.

Słowa kluczowe

EN

laminar-turbulent transition; rotating cavity; direct numerical method

PL

przejście laminarno-turbulentne; analiza numeryczna

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Turbulence : international journal
• Rocznik: 2005
• Tom: Vol. 11
• Strony: 213--220
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Tuliszka-Sznitko E.

• Institute of Thermal Engineering, Technical University of Poznań, Piotrowo 3, 60-965 Poznań, Poland

autor

Zieliński A.

• Institute of Thermal Engineering, Tchnical University of Poznan, Piotrowo 3, 60-965 Poznan, Poland

Bibliografia

• [1] Serre E., Crespo del Arco E., Bontoux P., Annular and spiral patters in flow between rotating and stationary disks, J. Fluid. Mech. 2001, 434, 65, 65-100.
• [2] Serre E., Tuliszka-Sznitko E., Bontoux P., Coupled numerical and theoretical study of the flow transition between a rotating and stationary disk, Phys. of Fluids 2004, 16, 3, 688-707.
• [3] Lingwood R., Absolute instability of the Ekman layer and related rotating flows. J. Fluid. Mech, 1997, 331, 405, 405-428.
• [4] Tuliszka-Sznitko E., Serre E., Bontoux P., On the nature of the boundary layers instabilities in a flow between a rotating and a stationary disc, C.R. Mecanique 2002, 30, 90-99.
• [5] Tuliszka-Sznitko E., Serre E., Bontoux P., Numerical investigation of flow instability in rotating cavity, 3rd MIT Computational Fluid and Solid Mechanics Conference, Elsevier 2005, 892-894.
• [6] Itoh M, On the instability of the flow between coaxial rotating disks, (in:) Boundary Layer Stability and Transition to Turbulence, ASME FED 1991, 114, 1991,83.
• [7] Gauthier G,, Gondret P., Moisy F., Rabaut M., Axisymmetric propagating vortices in the flow between a stationary and a rotating disk enclosed by a cylinder, J. Fluid Mech. 1999, 386, 105-126.
• [8] Schouveiler L., Le Gal P., Chauve P., Takeda Y., Spiral and circular waves in the flow between a rotating and a stationary disc, Experiments in Fluids 1999, 26, 179.
• [9] Tuliszka-Sznitko E., Soong C,Y,, Instability of non-isothermal flow between coaxial rotating disks, Proceedings of European Congress on Computational Methods in Applied Sciences and Engineering, Barcelona 2000.