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

Razi Nalim, Hongwei Li, Pejman Akbari

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


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, and key cycle parameters depend on complex gas dynamics. In this study, a consistent air-standard acrothermodynamic 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 of compression and expansion. 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.
Original languageEnglish
Title of host publicationProceedings of ASME Turbo Expo 2009
PublisherAmerican Society of Mechanical Engineers
Publication date2009
ISBN (Print)978-0-7918-3849-5, 978-0-7918-4885-2
Publication statusPublished - 2009
Externally publishedYes
EventASME Turbo Expo - Orlando, FL, United States
Duration: 8 Jun 200912 Jun 2009
Conference number: 54


ConferenceASME Turbo Expo
Country/TerritoryUnited States
CityOrlando, FL


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