Effects of Nonuniform Blade Pitch on the Flow Through an Annular Turbine Nozzle
This paper discusses flow measurement results both upstream and downstream of a transonic annular gas turbine nozzle with a nonuniform pitch. The downstream measurements are performed in the plane where the leading edge of the rotor blade is located in the gas turbine. The experiments were performed...
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1995-01-01
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| Series: | International Journal of Rotating Machinery |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S1023621X95000212 |
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| _version_ | 1849401542652723200 |
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| author | Rainer Kurz |
| author_facet | Rainer Kurz |
| author_sort | Rainer Kurz |
| collection | DOAJ |
| description | This paper discusses flow measurement results both upstream and downstream of a transonic annular gas turbine nozzle with a nonuniform pitch. The downstream measurements are performed in the plane where the leading edge of the rotor blade
is located in the gas turbine. The experiments were performed using total pressure probes and wall static pressure taps. The pitch variation modifies the flow field both upstream and downstream of the nozzle, although the experiments show that the effect is localized to the immediate neighborhood of the involved blades. The effects on the wakes and on the inviscid flow are discussed separately. The mean velocities show a strong sensitivity to the changes of the pitch, which is due to a potential flow effect rather than a viscous effect. |
| format | Article |
| id | doaj-art-8ceb20ddf77e4319a4b05a362e5e9945 |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 1995-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-8ceb20ddf77e4319a4b05a362e5e99452025-08-20T03:37:44ZengWileyInternational Journal of Rotating Machinery1023-621X1995-01-0121596510.1155/S1023621X95000212Effects of Nonuniform Blade Pitch on the Flow Through an Annular Turbine NozzleRainer Kurz0Solar Turbines Incorporated, San Diego, California, USAThis paper discusses flow measurement results both upstream and downstream of a transonic annular gas turbine nozzle with a nonuniform pitch. The downstream measurements are performed in the plane where the leading edge of the rotor blade is located in the gas turbine. The experiments were performed using total pressure probes and wall static pressure taps. The pitch variation modifies the flow field both upstream and downstream of the nozzle, although the experiments show that the effect is localized to the immediate neighborhood of the involved blades. The effects on the wakes and on the inviscid flow are discussed separately. The mean velocities show a strong sensitivity to the changes of the pitch, which is due to a potential flow effect rather than a viscous effect.http://dx.doi.org/10.1155/S1023621X95000212Nonuniform pitchTurbineLossesExcitationTransonic flow. |
| spellingShingle | Rainer Kurz Effects of Nonuniform Blade Pitch on the Flow Through an Annular Turbine Nozzle International Journal of Rotating Machinery Nonuniform pitch Turbine Losses Excitation Transonic flow. |
| title | Effects of Nonuniform Blade Pitch on the Flow
Through an Annular Turbine Nozzle |
| title_full | Effects of Nonuniform Blade Pitch on the Flow
Through an Annular Turbine Nozzle |
| title_fullStr | Effects of Nonuniform Blade Pitch on the Flow
Through an Annular Turbine Nozzle |
| title_full_unstemmed | Effects of Nonuniform Blade Pitch on the Flow
Through an Annular Turbine Nozzle |
| title_short | Effects of Nonuniform Blade Pitch on the Flow
Through an Annular Turbine Nozzle |
| title_sort | effects of nonuniform blade pitch on the flow through an annular turbine nozzle |
| topic | Nonuniform pitch Turbine Losses Excitation Transonic flow. |
| url | http://dx.doi.org/10.1155/S1023621X95000212 |
| work_keys_str_mv | AT rainerkurz effectsofnonuniformbladepitchontheflowthroughanannularturbinenozzle |