On prediction of tip leakage flow and heat transfer in gas turbines
(2004) ASME Turbo Expo 2004 Power for Land, Sea, and Air p.1521-1531- Abstract
- Abstract in Undetermined
A numerical study has been performed to simulate the tip leakage flow and heat transfer on the first stage of a high-pressure turbine, which represents a modern gas turbine blade geometry. The low Re k-ω (SST) model is used to model the turbulence. Calculations are performed for both a flat and a squealer blade tip for three different tip gap clearances. The computations were carried out using a single blade with periodic conditions imposed along the boundaries in the circumferential (pitch) direction. The predicted tip heat transfer and static pressure distributions show reasonable agreement with experimental data. It was also observed that the tip clearance has a significant influence on local tip heat... (More) - Abstract in Undetermined
A numerical study has been performed to simulate the tip leakage flow and heat transfer on the first stage of a high-pressure turbine, which represents a modern gas turbine blade geometry. The low Re k-ω (SST) model is used to model the turbulence. Calculations are performed for both a flat and a squealer blade tip for three different tip gap clearances. The computations were carried out using a single blade with periodic conditions imposed along the boundaries in the circumferential (pitch) direction. The predicted tip heat transfer and static pressure distributions show reasonable agreement with experimental data. It was also observed that the tip clearance has a significant influence on local tip heat transfer coefficient distribution. The flat tip blade provides a higher overall heat transfer coefficient than the squealer tip blade. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/593936
- author
- Mumic, Fadil LU ; Eriksson, Daniel LU and Sundén, Bengt LU
- organization
- publishing date
- 2004
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Viscous effects, Suction surfaces, Leakage flows, Blade-tip region
- host publication
- Proceedings of ASME Turbo Expo 2004 Power for Land, Sea, and Air
- pages
- 1521 - 1531
- conference name
- ASME Turbo Expo 2004 Power for Land, Sea, and Air
- conference location
- Vienna, Austria
- conference dates
- 0001-01-02
- external identifiers
-
- other:GT2004-53448
- scopus:10244270707
- language
- English
- LU publication?
- yes
- id
- 315e8308-86d4-4315-8314-f73efe7b74b4 (old id 593936)
- alternative location
- http://store.asme.org/product.asp?catalog_name=Conference+Papers&category_name=&product_id=GT2004-53448
- date added to LUP
- 2016-04-04 14:05:13
- date last changed
- 2022-03-31 21:59:25
@inproceedings{315e8308-86d4-4315-8314-f73efe7b74b4, abstract = {{Abstract in Undetermined<br/>A numerical study has been performed to simulate the tip leakage flow and heat transfer on the first stage of a high-pressure turbine, which represents a modern gas turbine blade geometry. The low Re k-ω (SST) model is used to model the turbulence. Calculations are performed for both a flat and a squealer blade tip for three different tip gap clearances. The computations were carried out using a single blade with periodic conditions imposed along the boundaries in the circumferential (pitch) direction. The predicted tip heat transfer and static pressure distributions show reasonable agreement with experimental data. It was also observed that the tip clearance has a significant influence on local tip heat transfer coefficient distribution. The flat tip blade provides a higher overall heat transfer coefficient than the squealer tip blade.}}, author = {{Mumic, Fadil and Eriksson, Daniel and Sundén, Bengt}}, booktitle = {{Proceedings of ASME Turbo Expo 2004 Power for Land, Sea, and Air}}, keywords = {{Viscous effects; Suction surfaces; Leakage flows; Blade-tip region}}, language = {{eng}}, pages = {{1521--1531}}, title = {{On prediction of tip leakage flow and heat transfer in gas turbines}}, url = {{http://store.asme.org/product.asp?catalog_name=Conference+Papers&category_name=&product_id=GT2004-53448}}, year = {{2004}}, }