Editorial for the special JSV issue in memory of Shôn Ffowcs Williams
(2023)
Journal Article
Heckl, M., Huang, L., & Musafir, R. E. (2023). Editorial for the special JSV issue in memory of Shôn Ffowcs Williams. Journal of Sound and Vibration, 553, 117685. https://doi.org/10.1016/j.jsv.2023.117685
Outputs (12)
A unified framework for acoustic instabilities based on the tailored Green's function (2022)
Journal Article
Heckl. (2022). A unified framework for acoustic instabilities based on the tailored Green's function. Journal of Sound and Vibration, 1-24. https://doi.org/10.1016/j.jsv.2022.117279This paper presents a unified framework to analyse the role of thermoacoustic and aeroacoustic sources in a one-dimensional acoustic resonator. We introduce two forms of the tailored Green’s function: one that satisfies the boundary conditions of the... Read More about A unified framework for acoustic instabilities based on the tailored Green's function.
3-D thermoacoustic instability analysis based on Green's function approach (2022)
Journal Article
Wang, X., & Heckl, M. (2022). 3-D thermoacoustic instability analysis based on Green's function approach. Journal of Sound and Vibration, 537, 1-28. https://doi.org/10.1016/j.jsv.2022.116816A fundamental analysis is made of the thermoacoustic instability in a hard-walled box. We model the flame as an acoustically compact source with a heat release characteristic described by a directional nt-law. This has the following features: it give... Read More about 3-D thermoacoustic instability analysis based on Green's function approach.
Analytical approximations for heat release rate laws in the time- and frequency-domains (2020)
Journal Article
Heckl. (2020). Analytical approximations for heat release rate laws in the time- and frequency-domains. International Journal of Spray and Combustion Dynamics, https://doi.org/10.1177/1756827720930491This paper focusses on the relationship between the heat release rate and the acoustic field, which is a crucial element in modelling thermoacoustic instabilities. The aim of the paper is twofold. The first aim is to develop a transformation tool, w... Read More about Analytical approximations for heat release rate laws in the time- and frequency-domains.
Advances by the Marie Curie project TANGO in thermoacoustics (2019)
Journal Article
Heckl. (2019). Advances by the Marie Curie project TANGO in thermoacoustics. International Journal of Spray and Combustion Dynamics, https://doi.org/10.1177/1756827719830950This paper gives an overview of the research performed by the project TANGO – an Initial Training Network (ITN) with an international consortium of seven academic and five industrial partners. TANGO is the acronym for ‘Thermoacoustic and Aeroacoustic... Read More about Advances by the Marie Curie project TANGO in thermoacoustics.
Corrigendum; Passive control of instabilities in combustion systems with heat exchanger (vol 10, pg 362, 2018) (2018)
Journal Article
Surendran, A., Heckl, M. A., Hosseini, N., & Jan Teerling, O. (2018). Corrigendum; Passive control of instabilities in combustion systems with heat exchanger (vol 10, pg 362, 2018). International Journal of Spray and Combustion Dynamics, 10(4), https://doi.org/10.1177/1756827718819360
Nonlinear analytical flame models with amplitude-dependent time-lag distributions (2018)
Journal Article
Heckl. (2018). Nonlinear analytical flame models with amplitude-dependent time-lag distributions. International Journal of Spray and Combustion Dynamics, 264-276. https://doi.org/10.1177/1756827717728056In the present work, we formulate a new method to represent a given Flame Describing Function by analytical expressions. The underlying idea is motivated by the observation that different types of perturbations in a burner travel with different speed... Read More about Nonlinear analytical flame models with amplitude-dependent time-lag distributions.
Passive control of instabilities in combustion systems with heat exchanger (2018)
Journal Article
Surendran, A., Heckl, M. A., Hosseini, N., & Jan Teerling, O. (2018). Passive control of instabilities in combustion systems with heat exchanger. International Journal of Spray and Combustion Dynamics, 10(4), 362 -379. https://doi.org/10.1177/1756827717731486One of the major concerns in the operability of power generation systems is their susceptibility to combustion instabilities. In this work, we explore whether a heat exchanger, an integral component of a domestic boiler, can be made to act as a passi... Read More about Passive control of instabilities in combustion systems with heat exchanger.
Aeroacoustic response of an array of tubes with and without bias-flow (2018)
Journal Article
Surendran, A., Heckl, M. A., Peerlings, L., Boij, S., Bodén, H., & Hirschberg, A. (2018). Aeroacoustic response of an array of tubes with and without bias-flow. Journal of Sound and Vibration, 454, 1 -16. https://doi.org/10.1016/j.jsv.2018.07.022Heat exchangers, consisting of tube arrays in a cross-flow are a vital component of power generation systems. They are of interest from an acoustic point of view, because they can reflect, transmit and absorb an incident sound wave; in other words, t... Read More about Aeroacoustic response of an array of tubes with and without bias-flow.
Analysis and Control of an Unstable Mode in a Combustor with Tuneable End Condition (2013)
Journal Article
Heckl, M., & Kosztin, B. (2013). Analysis and Control of an Unstable Mode in a Combustor with Tuneable End Condition. International Journal of Spray and Combustion Dynamics, 5(3), 243-271. https://doi.org/10.1260/1756-8277.5.3.243A major problem in the development of low-pollution combustion systems are thermo-acoustic instabilities, i.e. large-amplitude oscillations generated by a feedback between the unsteady heat release and acoustic waves. In order to develop robust contr... Read More about Analysis and Control of an Unstable Mode in a Combustor with Tuneable End Condition.