Effect of film hole location on heat transfer coefficient and film effectiveness of a gas turbine blade /
(D.R. = 1.0) and C02 (D.R. = 1.52) film injection. Tests
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (D.R. = 1.0) and C02 (D.R. = 1.52) film injection. Tests accurately predicts the film effectiveness downstream of the and plugging the others. A combination of turbulence grid and two rows each on the pressure and suction surfaces. Film and unsteady wake was used to generate unsteady high blade had three rows of film holes in the leading edge region density injectants, and at all studied blowing ratios. Film effectiveness distributions of a turbine blade model with air Experiments were performed to study the effect of film hole film effectiveness, depending on the local mainstream high turbulence levels, transition location is nearly hole locations were varied by leaving the desired holes open in mainstream turbulence intensity causes an increase in independent of film injection location. The results also indicate injection at different locations provides different injection by itself causes a substantial increase in Nusselt injection promotes an earlier transition and the onset of injection region. location on local heat transfer coefficient and film model of film effectiveness has been examined by comparing model. For most cases, the superposition principle numbers over a blade model without film holes. An increase Nusselt number and a decrease in film effectiveness, for both Reynolds number of 3x 105 at the cascade inlet. The test the measured film effectiveness with predictions using this transition depends on the film injection location; but at turbulence upstream conditions. The results show that film velocity and blade curvature. In addition, the superposition were performed on a five blade linear cascade at the chord |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xii, 66 leaves : illustrations ; 28 cm. + 1 computer disk. Also available online. |
| Format: | System requirements for accompanying disk: IBM PC. |
| Bibliography: | Includes bibliographical references. |