The impact of wake-induced unsteady flows on blade row performance and the wake rectification process is examined by means of numerical simulation. The passage of a stator wake through a downstream rotor is first simulated using a three dimensional unsteady viscous flow code. The results from this simulation are used to define two steady state inlet conditions for a three dimensional viscous flow simulation of a rotor operating in isolation. The results obtained from these numerical simulations are then compared to those obtained from the unsteady simulation both to quantify the impact of the wake-induced unsteady flow field on rotor performance and to identify the flow processes which impact wake rectification. Finally, the results from this comparison study are related to an existing model which attempts to account for the impact of wake-induced unsteady flows on the performance of multistage turbomachinery.
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ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition
June 13–16, 1994
The Hague, Netherlands
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7883-5
PROCEEDINGS PAPER
Wake-Induced Unsteady Flows: Their Impact on Rotor Performance and Wake Rectification
J. J. Adamczyk,
J. J. Adamczyk
NASA Lewis Research Center, Brook Park, OH
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M. L. Celestina,
M. L. Celestina
Sverdrup Technology, Inc., Brook Park, OH
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Jen Ping Chen
Jen Ping Chen
Mississippi State University, Mississippi State, MS
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J. J. Adamczyk
NASA Lewis Research Center, Brook Park, OH
M. L. Celestina
Sverdrup Technology, Inc., Brook Park, OH
Jen Ping Chen
Mississippi State University, Mississippi State, MS
Paper No:
94-GT-219, V001T01A078; 9 pages
Published Online:
February 18, 2015
Citation
Adamczyk, JJ, Celestina, ML, & Chen, JP. "Wake-Induced Unsteady Flows: Their Impact on Rotor Performance and Wake Rectification." Proceedings of the ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. Volume 1: Turbomachinery. The Hague, Netherlands. June 13–16, 1994. V001T01A078. ASME. https://doi.org/10.1115/94-GT-219
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