0
Technical Briefs

Air-Standard Aerothermodynamic Analysis of Gas Turbine Engines With Wave Rotor Combustion

[+] Author and Article Information
M. R. Nalim1

Department of Mechanical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202-5132

H. Li

Department of Mechanical Engineering, Purdue University, West Lafayette, IN 47907

P. Akbari

Department of Mechanical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202-5132

1

Corresponding author.

J. Eng. Gas Turbines Power 131(5), 054506 (Jun 09, 2009) (6 pages) doi:10.1115/1.3078790 History: Received August 28, 2008; Revised November 22, 2008; Published June 09, 2009

The wave rotor combustor can significantly improve gas turbine engine performance by implementing constant-volume combustion. The periodically open and closed combustor complicates thermodynamic analysis. Key cycle parameters depend on complex gas dynamics. In this study, a consistent air-standard aerothermodynamic model with variable specific heat is established. An algebraic model of the dominant gas dynamics estimates fill fraction and internal wave compression for typical port designs, using a relevant flow Mach number to represent wave amplitudes. Nonlinear equations for thermodynamic state variables are solved numerically by Newton–Raphson iteration. Performance measures and key operating conditions are predicted, and a quasi-one-dimensional computational model is used to evaluate the usefulness of the algebraic model.

FIGURES IN THIS ARTICLE
<>
Copyright © 2009 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Wave pattern in a developed view of the wave rotor combustor

Grahic Jump Location
Figure 5

Pressure-gain comparison of CFD and linear approximation to algebraic model

Grahic Jump Location
Figure 4

CFD simulation of wave rotor combustor cycle with burned residual gas (μ=0.76) and forward propagating deflagration in stratified fuel-air mixture

Grahic Jump Location
Figure 3

Cycle efficiency, specific work, and pressure gain as functions of temperature ratio with M3=0.6, ηWE=ηWC=0.8

Grahic Jump Location
Figure 2

Efficiency, η, and specific work, w, as functions of wave rotor combustor exit Mach number for different wave rotor internal efficiencies

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In