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Wave Cycle Design for NOx-Limited Wave Rotor Core Engines for High Speed Propulsion PUBLIC ACCESS

[+] Author Affiliations
M. Razi Nalim, Jeffrey C. Mocsari, Edwin L. Resler, Jr.

Cornell University, Ithaca, NY

Paper No. 93-GT-426, pp. V03CT17A087; 8 pages
doi:10.1115/93-GT-426
From:
  • ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 3C: General
  • Cincinnati, Ohio, USA, May 24–27, 1993
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7892-7
  • Copyright © 1993 by ASME

abstract

Direct work and pressure exchange between gases can be accomplished by cyclic wave processes in the channels of a wave-rotor, circumventing the limitations of turbo-compressors. A wave-rotor cycle is presented for use as the high-pressure core in a high speed aircraft engine with turbine bypass. The products of a “low-NOx” combustor undergo a large immediate wave-expansion to reach a permissible turbine blade temperature. The wave rotor provides a substantial increase in pressure ratio and peak cycle temperature resulting in high specific power and efficiency.

Approximate analytical methods are employed for initial design and optimization of the cycle. The method of characteristics is then used to compute the detailed time evolution of the flow-field in a wave channel.

Copyright © 1993 by ASME
This article is only available in the PDF format.

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