The effect of the turbulence model on the turbine stage flow exit angle distribuation

• Autorzy: Świrydczuk J.
• Języki publikacji: EN

Abstrakty

EN

The article analyses the effect of the turbulence model on the calculated exit angles of the flow leaving the rotor of a low-pressure turbine stage. Three turbulence models were taken into account: the algebraic Baldwin-Lomax model and two advanced differential models based on the Shear Stress Transport (SST) approach proposed by Menter. The calculated results have revealed that even such extremely different turbulence models impose little difference in the resultant averaged flow exit angle distributions, especially in stages in which a regular flow pattern without flow separation and/or other irregularities is observed. Larger differences can be observed in local distributions of this parameter, especially in the regions of activity of secondary vortex structures.

Słowa kluczowe

EN

turbine stage; turbulence model; flow exit angle

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2012
• Tom: Vol. 16, No 3-4
• Strony: 239--252
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Świrydczuk J.

• Institute of Fluid-Flow Machinery, Polish Academy of Sciences

Bibliografia

• [1] Baldwin B S and Lomax H 1978 AIAA Paper 257/78
• [2] Meater F R 1994 AIAA J. 32 1299
• [3] Yershov S and Świrydczuk J 2010 Problemy Maszinostrojenija 13 (1) 19
• [4] Gardzilewicz A, Lampart P, Świrydczuk J, Luniewicz B, Lubieniecki M and Elszkowski J 2000 Proc POWERGES 2000, Helsinki (on CD)
• [5] Yershov S, Rusanov A, Gardzilewicz A, Lampart P and Świrydczuk J 1998 TASK Quart 2 319
• [6] Marcinkowski S, Gardzilewicz A, Głuch J, Prokopowicz J, Kurant B and Topolski J 1999 Diagnostyka Maszyn Report 11/99 (in Polish)
• [7] Gardzilewicz A, Marcinkowski S, Blazko E, Kurant B, Lidke M and Prokopowicz J 1998 Diagnostyka Maszyn Report 2/98 (in Polish)