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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Gmelin, Christoph Thiele, Frank Liesner, Karsten Meyer, Robert |
| Copyright Year | 2011 |
| Abstract | Numerical and experimental results for a high-speed compressor cascade with secondary flow suction are presented. Steady flow suction of low momentum fluid from the back flow region in the corner between end wall and vane is considered in order to diminish the corner separation. Investigations are performed at the design point with an inlet Mach number of 0.67 and a Reynolds number of 560,000 based on axial chord and inlet velocity. The steady Reynolds-Averaged Navier-Stokes simulations are evaluated against data from the accompanying experiment collected with pitot tubes and Conrad angle probes. Laminar separation bubbles on both suction and pressure surface are observed. Thus, transition from laminar to turbulent flow is respected in the simulations. The uncontrolled base flow case and various suction ratios (ratio of drawn to passage mass flow) are exploited. Additionally, the position of the slot is varied numerically. It is found that relocation of the slot slightly away from the suction surface improves the performance of the flow suction. |
| Sponsorship | International Gas Turbine Institute |
| Starting Page | 405 |
| Ending Page | 415 |
| Page Count | 11 |
| File Format | |
| ISBN | 9780791854679 |
| DOI | 10.1115/GT2011-46479 |
| Volume Number | Volume 7: Turbomachinery, Parts A, B, and C |
| Conference Proceedings | ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition |
| Language | English |
| Publisher Date | 2011-06-06 |
| Publisher Place | Vancouver, British Columbia, Canada |
| Access Restriction | Subscribed |
| Subject Keyword | Suction Turbulence Navier-stokes equations Cascades (fluid dynamics) Reynolds number Momentum Compressors Separation (technology) Flow (dynamics) Pressure Design Bubbles Fluids Simulation Chords (trusses) Flowmeters Engineering simulation Corners (structural elements) Probes Mach number |
| Content Type | Text |
| Resource Type | Article |
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