Transition modelling with intermittency transport model

• Autorzy: Elsner, W. , Warzecha, P.
• Konferencja: International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (15-17.09.2008; Łódź; Polska)
• Języki publikacji: EN

Abstrakty

EN

The paper presents validation of -Reθ model proposed by Menter at al (2006), which was extended by in-house correlations on onset location and transition length. The tests performed were based on experimental data on the flat plate test cases where l-t transition, laminar separation and reattachment were present. The model was applied both for steady and unsteady calculations. It was shown that the model was able to reproduce some essential flow features related to the separated transition and the simulations reveal good agreement with the experimental results.

Słowa kluczowe

PL

warstwa przyścienna; niestabilność; rozdzielenie

EN

boundary layer; separation; transition modelling; intermittency

• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2008
• Tom: nr 133
• Strony: 119--128
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Elsner, W.

• Technical University of Czestochowa,

autor

Warzecha, P.

• Technical University of Czestochowa,

Bibliografia

• [1] Dhawan S., Narasimha R., 1958, Some Properties of Boundary Layer Flow during Transition from Laminar to Turbulent Motion, J. Fluid Mech. 3, pp. 418-436.
• [2] Elsner W., 2007, Transition modelling in turbomachinery, J. of Theor. and Applied Mech., Turbulence and Flow Stability, No. 3, Vol 45, pp.539-556.
• [3] Lodefier K., Dick E., 2006, Modelling of Unsteady Transition in Low-Pressure Turbine Blade Flows with Two Dynamic Intermittency Equations, Flow, Turbulence and Combustion, 76(2); pp.103-132.
• [4] Lou W., Hourmouziadis, J., 2000, Separation Bubbles Under Steady and Periodic-Unsteady Main Flow Conditions, Trans. ASME J. of Turbomachinery, Vol. 122, pp. 634-643.
• [5] Menter F.R., Langtry R.B., Likki S.R., Suzen Y.B., Huang P.G., Völker S., 2006, A correlation – based transition model using local variables P.I – Model formation, ASME, J. of Turbomachinery vol. 128, pp. 413-422.
• [6] Piotrowski W., Elsner W., Drobniak S., 2008, Transition Prediction On Turbine Blade Profile With Intermittency Transport Equation, ASME paper GT2008-50796, ASME TURBO EXPO, Berlin.
• [7] Watanabe E., Tanaka Y., Nakano T., Ohyama H., Tanaka K., Miyawaki T., Tsutsumi M., Shinohara T., 2003, Development of New High Efficiency Steam Turbine, Mitsubishi Heavy Industries Ltd., Technical Review Vol. 40, No.4, pp.1-6.