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Comparison Between Simulated and Experimentally Measured Performance of a Four Port Wave RotorPerformance and operability testing has been completed on a laboratory-scale, four-port wave rotor, of the type suitable for use as a topping cycle on a gas turbine engine. Many design aspects, and performance estimates for the wave rotor were determined using a time-accurate, one-dimensional, computational fluid dynamics-based simulation code developed specifically for wave rotors. The code follows a single rotor passage as it moves past the various ports, which in this reference frame become boundary conditions. This paper compares wave rotor performance predicted with the code to that measured during laboratory testing. Both on and off-design operating conditions were examined. Overall, the match between code and rig was found to be quite good. At operating points where there were disparities, the assumption of larger than expected internal leakage rates successfully realigned code predictions and laboratory measurements. Possible mechanisms for such leakage rates are discussed.
Document ID
20070032927
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Paxson, Daniel E. (NASA Glenn Research Center Cleveland, OH, United States)
Wilson, Jack (ASRC Aerospace Corp. Cleveland, OH, United States)
Welch, Gerard E. (Army Research Lab. Cleveland, OH, United States)
Date Acquired
August 23, 2013
Publication Date
October 1, 2007
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
NASA/TM-2007-214985
AIAA Paper-2007-5049
ARL-TR-4202
E-16166
Meeting Information
Meeting: 43rd AIAA Joint Propulsion Conference
Location: Cincinnati, OH
Country: United States
Start Date: July 8, 2007
End Date: July 12, 2007
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 561581.02.08.03.17.02
Distribution Limits
Public
Copyright
Public Use Permitted.

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