Systematic Investigation on Conjugate Heat Transfer Rates of Film Cooling Configurations
For the determination of the film-cooling heat transfer, the design of a turbine blade relies on the conventional determination of the adiabatic film-cooling effectiveness and heat transfer conditions for test configurations. Thus, additional influences by the interaction of fluid flow and heat tran...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2005-01-01
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| Series: | International Journal of Rotating Machinery |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/IJRM.2005.211 |
| Summary: | For the determination of the film-cooling heat transfer,
the design of a turbine blade relies on the conventional
determination of the adiabatic film-cooling effectiveness and heat
transfer conditions for test configurations. Thus, additional
influences by the interaction of fluid flow and heat transfer and
influences by additional convective heat transfer cannot be taken
into account with sufficient accuracy. Within this paper,
calculations of a film-cooled duct wall and a
film-cooled real blade with application of the
adiabatic and a conjugate heat transfer condition have been
performed for different configurations. It can be shown that the
application of the conjugate calculation method comprises the
influence of heat transfer within the cooling film. The local heat
transfer rate varies significantly depending on the local
position. |
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| ISSN: | 1023-621X 1542-3034 |