Ayuda
Ir al contenido

Dialnet


Sensitivity and Nonlinearity of Thermoacoustic Oscillations

    1. [1] University of Cambridge

      University of Cambridge

      Cambridge District, Reino Unido

    2. [2] Indian Institute of Technology Madras

      Indian Institute of Technology Madras

      India

  • Localización: Annual review of fluid mechanics, ISSN 0066-4189, Nº. 50, 2018, págs. 661-689
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • Nine decades of rocket engine and gas turbine development have shown that thermoacoustic oscillations are difficult to predict but can usually be eliminated with relatively small ad hoc design changes. These changes can, however, be ruinously expensive to devise. This review explains why linear and nonlinear thermoacoustic behavior is so sensitive to parameters such as operating point, fuel composition, and injector geometry. It shows how nonperiodic behavior arises in experiments and simulations and discusses how fluctuations in thermoacoustic systems with turbulent reacting flow, which are usually filtered or averaged out as noise, can reveal useful information. Finally, it proposes tools to exploit this sensitivity in the future: adjoint-based sensitivity analysis to optimize passive control designs and complex systems theory to warn of impending thermoacoustic oscillations and to identify the most sensitive elements of a thermoacoustic system.


Fundación Dialnet

Dialnet Plus

  • Más información sobre Dialnet Plus

Opciones de compartir

Opciones de entorno