Numerical simulations of gap flow above rotating disk

• Autorzy: Wasilczuk F. , Flaszyński P. , Doerffer P.
• Języki publikacji: EN

Abstrakty

EN

A rotating disk can be considered a basic configuration for the investigations of the impact of various conditions on the flow through the clearance between the shrouded turbine blade and the casing. Numerical calculations using Fine/Turbo Numeca were conducted to examine the influence of the rotational velocity and the pressure difference across the disk on the flow conditions, especially the mass flow through the clearance. The results were validated using the experimental data. Moreover, the flow field was investigated to reveal the vortices induced in the flow. The calculations showed a significant drop of the mass flow with a rise of the rotation velocity. Additionally, the vortex created upstream of the disk at higher rotation velocities was observed. The phenomenon of separation at the edge of the disk was investigated.

Słowa kluczowe

EN

computational fluid dynamics CFD; internal flow; flow control

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2015
• Tom: Vol. 19, No 2
• Strony: 89--100
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Wasilczuk F.

• Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland
• Interdepartmental PhD Studies at the Gdansk University of Technology, Narutowicza 11/12, 80–233 Gdansk, Poland

autor

Flaszyński P.

• Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland

autor

Doerffer P.

• Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland

Bibliografia

• [1] Puzyrewski R and Jakubek A 1989 Prace Instytutu Maszyn Przepływowych 89
• [2] Puzyrewski R and Jakubek A 1991 Prace Instytutu Maszyn Przepływowych 93
• [3] Booth T C, Dodge P R and Hepworth H K 1982 ASME J. Turbomachinery 104 154
• [4] Hofer T, Legrand M, Pons L and Arts T 2009 ASME Turbo Expo 2009: Power for Land, Sea, and Air, Turbomachinery, Parts A and B, Orlando, Florida, USA, 7
• [5] Kanjirakkad V et al. 2008 ASME J. Turbomachinery 130 (1)
• [6] Pfau A, Trieber M, Sell M and Gymrathy G 2000 ASME Paper No. 2000-GT-0481
• [7] Wallis A M, Denton J D and Demargne A A J 2000 ASME Paper No. 2000-GT-0475
• [8] Lehmann K, Thomas R, Hodson H and Stefanis V ASME Turbo Expo 2009: Power for Land, Sea, and Air, Heat Transfer, Parts A and B, Orlando, Florida, USA, 3
• [9] Stephens J 2009 Control of the tip-gap flow of a low pressure turbine blade in a linear cascade, PhD thesis, University of Notre Dame
• [10] Spalart P R and Allmaras S R 1992 AIAA Paper 92–0439