[HTML][HTML] A Jacobian-based framework for the derivation of comprehensive thermoacoustic jump conditions

M Merk, F Schily, W Polifke - Combustion and Flame, 2025 - Elsevier
Low-order network models are an efficient framework to describe and predict
thermoacoustic phenomena in confined combustion systems. These models are based on …

[HTML][HTML] An Arbitrary Lagrangian–Eulerian framework for the consistent analysis of entropy wave generation

M Merk, AJ Eder, W Polifke - Combustion and Flame, 2024 - Elsevier
Entropy waves are generated in many technically relevant flow processes such as
combustion, mixing, or convective heat transfer. When accelerated, entropy waves generate …

Numerical investigation on the generation, mixing and convection of entropic and compositional waves in a flow duct

J Rodrigues, A Busseti, S Hochgreb - Journal of Sound and Vibration, 2020 - Elsevier
Recent models and experiments have demonstrated that indirect noise can be generated
via acceleration of either entropic or compositional perturbations through a nozzle. These …

Compositional noise in nozzles with dissipation

A Jain, L Magri - Journal of Fluid Mechanics, 2023 - cambridge.org
We propose a physical model to predict indirect noise generated by the acceleration of
compositional inhomogeneities in nozzles with viscous dissipation (non-isentropic nozzles) …

Behaviour of accelerating entropy spots

F De Domenico - 2019 - repository.cam.ac.uk
Combustion noise has become a major research interest within the aerospace community.
Stricter pollutant emission regulations have forced the introduction of lean premixed pre …