Abstract
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 language | English |
|---|---|
| Title of host publication | Proceedings of ASME Turbo Expo 2009 |
| Volume | 4 |
| Publisher | American Society of Mechanical Engineers |
| Publication date | 2009 |
| Pages | 445-456 |
| ISBN (Print) | 978-0-7918-3849-5, 978-0-7918-4885-2 |
| Publication status | Published - 2009 |
| Externally published | Yes |
| Event | ASME Turbo Expo - Orlando, FL, United States Duration: 8 Jun 2009 → 12 Jun 2009 Conference number: 54 |
Conference
| Conference | ASME Turbo Expo |
|---|---|
| Number | 54 |
| Country/Territory | United States |
| City | Orlando, FL |
| Period | 08/06/2009 → 12/06/2009 |