Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor
The potential for the ultracompact combustor (UCC) lie in future research to reduced fuel consumption and improved engine performance. Velocity measurements performed on the UCC test rig at the Air Force Institute of Technology revealed flow patterns and time-averaged turbulence statistics for data...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/756463 |
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| author | Levi M. Thomas Richard D. Branam Mark F. Reeder |
| author_facet | Levi M. Thomas Richard D. Branam Mark F. Reeder |
| author_sort | Levi M. Thomas |
| collection | DOAJ |
| description | The potential for the ultracompact combustor (UCC) lie in future research to reduced fuel consumption and improved engine performance. Velocity measurements performed on the UCC test rig at the Air Force Institute of Technology revealed flow patterns and time-averaged turbulence statistics for data taken burning hydrogen fuel in a straight and a curved cavity vane configuration. Over an equivalence ratio from 0.7 to 1.5, the straight vane configuration showed spanwise velocity decreased linearly with distance from the cavity vane over the width of the main channel. Increasing the flow rates and holding the equivalence ratio and ratio of cavity to main airflow rates constant, flow velocities in the main channel showed an increase with the curved circumferential configuration but a decrease with the straight
circumferential configuration. Turbulence intensity is expected to be a major contributing factor, specifically since measured at 15% and 21% in the main channel for the straight and curved configurations, respectively. The results also show how the radial vane cavity (RVC) created strong vorticity throughout the main flow supporting a recirculation zone for mixing. Peak vorticity occurred farthest from the cavity vane suggesting the angle of the radial vane cavity is effective in generating increasing flow rotation. |
| format | Article |
| id | doaj-art-db052b5bbbb9496797e9a405e04599dd |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-db052b5bbbb9496797e9a405e04599dd2025-02-03T01:04:57ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742012-01-01201210.1155/2012/756463756463Flow Measurements Using Particle Image Velocimetry in the Ultracompact CombustorLevi M. Thomas0Richard D. Branam1Mark F. Reeder2Department of Aeronautics, Air Force Institute of Technology-AFIT/ENY, Wright-Patterson AFB, 2950 Hobson Way, Building 640, Dayton, OH 45433, USADepartment of Aeronautics, Air Force Institute of Technology-AFIT/ENY, Wright-Patterson AFB, 2950 Hobson Way, Building 640, Dayton, OH 45433, USADepartment of Aeronautics, Air Force Institute of Technology-AFIT/ENY, Wright-Patterson AFB, 2950 Hobson Way, Building 640, Dayton, OH 45433, USAThe potential for the ultracompact combustor (UCC) lie in future research to reduced fuel consumption and improved engine performance. Velocity measurements performed on the UCC test rig at the Air Force Institute of Technology revealed flow patterns and time-averaged turbulence statistics for data taken burning hydrogen fuel in a straight and a curved cavity vane configuration. Over an equivalence ratio from 0.7 to 1.5, the straight vane configuration showed spanwise velocity decreased linearly with distance from the cavity vane over the width of the main channel. Increasing the flow rates and holding the equivalence ratio and ratio of cavity to main airflow rates constant, flow velocities in the main channel showed an increase with the curved circumferential configuration but a decrease with the straight circumferential configuration. Turbulence intensity is expected to be a major contributing factor, specifically since measured at 15% and 21% in the main channel for the straight and curved configurations, respectively. The results also show how the radial vane cavity (RVC) created strong vorticity throughout the main flow supporting a recirculation zone for mixing. Peak vorticity occurred farthest from the cavity vane suggesting the angle of the radial vane cavity is effective in generating increasing flow rotation.http://dx.doi.org/10.1155/2012/756463 |
| spellingShingle | Levi M. Thomas Richard D. Branam Mark F. Reeder Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor International Journal of Aerospace Engineering |
| title | Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor |
| title_full | Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor |
| title_fullStr | Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor |
| title_full_unstemmed | Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor |
| title_short | Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor |
| title_sort | flow measurements using particle image velocimetry in the ultracompact combustor |
| url | http://dx.doi.org/10.1155/2012/756463 |
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