1. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Cross-section of the experimental setup [10] and computational domain Figure Legend:

2. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Pressure spectra at different monitors on the wall along the length of the test section Figure Legend:

3. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Spectra at a location (x = 1550 mm) downstream of the V-gutter Figure Legend:

4. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Demonstration of the flow-acoustic lock-on and a comparison with experimental data. Open symbols represent experimental values [10] and filled symbols are the present results. The dashed lines are trend lines. Figure Legend:

5. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Mode shapes for various air flow inlet velocities. Open symbols are experimental values [10] and filled symbols are the present results. The location of the V-gutter is indicated by the dashed line. Figure Legend:

6. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Contours of major pressure fluctuations obtained from the POD for various air flow rates. Flow is from left to right. Figure Legend:

7. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Contours of major vorticity fluctuations obtained from the POD for various air flow rates. Flow is from left to right. Figure Legend:

8. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Fluctuations of the dimensionless pressure (p′) and heat release (q′) (left) and the temperature (T′) and heat release (q′) (right) for two air flow velocities in the subvolume located 33.5 mm downstream of the V-gutter Figure Legend:

9. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Contours of the product p′q′ on the symmetry plane for an air velocity of 14.52 m/s at various time instants (a) t = 0.1 s, (b) t = 0.2 s, (c) t = 0.3 s, (d) t = 0.4 s, and (e) the time averaged value. Only positive values (unstable regions) are shown. Flow is from left to right. Figure Legend:

10. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Unstable regions (R(x) > 0) predicted by the Rayleigh index. Flow is from left to right. The V-gutter is shown at the extreme left. Figure Legend:

11. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Numerical Investigation of Combustion Instability in a V-Gutter Stabilized Combustor J. Eng. Gas Turbines Power. 2013;135(12):121501-121501-9. doi:10.1115/1.4025261 Variation of global values of the Rayleigh index, modified Rayleigh index, and amplitude of the dominant mode with the air flow rate Figure Legend: