OSCILOS

OSCILOS

The open source combustion instability low order simulator

1. OSCILOS_long

The theory underpinning OSCILOS_long, along with relevant references, is explained in detail the Technical Report. This is included in the code download, and can be downloaded separately here.

For a practical guide on using OSCILOS_long from within the Matlab environment, a User Guide is included in the code download, and can be downloaded separately here.

2. OSCILOS_lite

The theory underpinning OSCILOS_lite is the same as for OSCILOS_long. It is included in the code download, and can be downloaded separately here. A User Guide specifically for OSCILOS_lite is also in the code download, available separately here.

3. OSCILOS_opt

The theory underpinning OSCILOS_opt is the same as for OSCILOS_long and OSCILOS_lite. It is included in the code download, and can be downloaded separately here. A User Guide specifically for OSCILOS_opt is also in the code download, available separately here.

4. OSCILOS_Sim

The practical guide on using OSCILOS_Sim from within the Simulink environment is included in the code download, and can be downloaded separately here.

5. OSCILOS_ann

The practical guide on using OSCILOS_ann from within the Matlab environment, as well as the basics of the background theory, is included in the code download, and can be downloaded separately here. The 2019 reference paper "A systematic study of nonlinear coupling of thermoacoustic modes in annular combustors" below is also useful for more details on the modelling.

OSCILOS Academic Publications

OSCILOS is used in the following academic publications:

  • Yang D, Laera D, Morgans AS, 2019, A systematic study of nonlinear coupling of thermoacoustic modes in annular combustors, Journal of Sound and Vibration, 456, 137-161

  • Yang D, Sogaro FM, Morgans AS, Schmid PJ, 2019, Optimising the acoustic damping of multiple Helmholtz resonators attached to a thin annular duct, Journal of Sound and Vibration, Vol: 444, Pages: 69-84

  • Xia Y, Laera D, Jones WP, Morgans AS, 2019, Numerical prediction of the flame describing function and thermoacoustic limit cycle for a pressurized gas turbine combustor, Combustion Science and Technology

  • Li J, Xia Y, Morgans AS, Han X, 2017, Numerical prediction of combustion instability limit cycle oscillations for a combustor with a long flame, Combustion and Flame

  • Yang D, Morgans AS, 2017, The acoustics of cooled Helmholtz resonators, AIAA Journal

  • Li J, Morgans AS, 2017, The one-dimensional acoustic field in a duct with arbitrary mean axial temperature gradient and mean flow, Journal of Sound and Vibration, Vol: 400, Pages: 248–269

  • Yang D, Morgans AS, 2017, The acoustics of short circular holes opening to confined and unconfined spaces, Journal of Sound and Vibration, Vol: 393, Pages: 41–61

  • Yang D, Morgans AS, 2016, A semi-analytical model for the acoustic impedance of finite length circular holes with mean flow, Journal of Sound and Vibration, Vol: 384, Pages: 294–311

  • Li J, Morgans AS, 2016, Feedback control of combustion instabilities from within limit cycle oscillations using H∞ loop-shaping and the ν-gap metric, Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences, Vol: 472, issue 2191

  • Li J, Morgans AS, 2016, Simplified models for the thermodynamic properties along a combustor and their effect on thermoacoustic instability prediction, Fuel, Vol: 184, Pages: 735-748

  • Li J, Morgans AS, 2015, Time domain simulations of nonlinear thermoacoustic behaviour in a simple combustor using a wave-based approach, Journal of Sound and Vibration, Vol: 346, Pages: 345-360

  • Han X, Li J, Morgans AS, 2015, Prediction of combustion instability limit cycle oscillations by combining flame describing function simulations with a thermoacoustic network model, Combustion and Flame, Vol: 162, Pages: 3632-3647

  • Yang D, Morgans AS, Helmholtz resonators for damping combustor thermoacoustics, 22nd International Congress on Sound and Vibration (ICSV), 2015

  • Morgans AS, Li J, The effect of entropy noise on combustion instability in the presence of advective shear dispersion, 22nd International Congress on Sound and Vibration (ICSV), 2015

  • Li J, Morgans AS, Control of combustion instabilities by a second heat source, 22nd International Congress on Sound and Vibration (ICSV), 2015