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In a method of controlling thermoacoustic vibrations in a combustion system having a combustion chamber and a burner, the fluid shear layer forming in the region of the burner is acoustically excited. An apparatus for controlling thermoacoustic vibrations in a combustion system having a combustion c

In a method of controlling thermoacoustic vibrations in a combustion system having a combustion chamber and a burner, the fluid shear layer forming in the region of the burner is acoustically excited. An apparatus for controlling thermoacoustic vibrations in a combustion system having a combustion chamber and a burner is distinguished by the fact that device(s) for the acoustic excitation of the working gas are arranged in the region of the burner.

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1. A method of suppressing thermoacoustic vibrations in a combustion system having a combustion chamber, a plenum arranged upstream of the combustion chamber, a burner arranged between the combustion chamber and the plenum, and a working gas flowing through the combustion system, wherein a shear lay

1. A method of suppressing thermoacoustic vibrations in a combustion system having a combustion chamber, a plenum arranged upstream of the combustion chamber, a burner arranged between the combustion chamber and the plenum, and a working gas flowing through the combustion system, wherein a shear layer forms in the working gas as the working gas flows through the combustion system, comprising the steps of:acoustically exciting the shear layer with the acoustic excitation of the shear layer being instantaneous; and phase coupling the acoustic excitation with a signal measured in the combustion system; wherein the step of acoustically exciting the shear layer comprises introducing the acoustic excitation into the combustion system at the plenum.