Numerical assessment of four-port through-flow wave rotor cycles with passage height variation

D. E. Paxson, Jules W. Lindau

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

The potential for improved performance of wave rotor cycles through the use of passage height variation is examined. A Quasi-one-dimensional CFD code with experimentally validated loss models is used to determine the flowfield in the wave rotor passages. Results indicate that a carefully chosen passage height profile can produce substantial performance gains. Numerical performance data are presented for a specific profile, in a four-port, through-flow cycle design which yielded a computed 4.6% increase in design point pressure ratio over a comparably sized rotor with constant passage height. In a small gas turbine topping cycle application, this increased pressure ratio would reduce specific fuel consumption to 22% below the untopped engine; a significant improvement over the already impressive 18% reductions predicted for the constant passage height rotor. The simulation code is briefly described. The method used to obtain rotor passage height profiles with enhanced performance is presented. Design and off-design results are shown using two different computational techniques. The paper concludes with some recommendations for further work.

Original languageEnglish (US)
StatePublished - Jan 1 1997
Event33rd Joint Propulsion Conference and Exhibit, 1997 - Seattle, United States
Duration: Jul 6 1997Jul 9 1997

Other

Other33rd Joint Propulsion Conference and Exhibit, 1997
CountryUnited States
CitySeattle
Period7/6/977/9/97

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Systems Engineering
  • Aerospace Engineering

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    Paxson, D. E., & Lindau, J. W. (1997). Numerical assessment of four-port through-flow wave rotor cycles with passage height variation. Paper presented at 33rd Joint Propulsion Conference and Exhibit, 1997, Seattle, United States.