| 摘要 |
A gas turbine (1) comprising a combustion oscillation suppressing device (34) disposed to a transition piece (32) of a combustor (3) to define a gas space (S), and communicating the gas space (S) and an inside of the transition piece (32) through a plurality of vent holes (343), in order to reduce combustion oscillation generated in a combustor (3), wherein the combustion oscillation suppressing device (34) is formed of a first member (341) and a second member (342) both of which define the gas space (S), the second member (342) having the vent holes (343), and, when seen in a radial-direction cross section of the transition piece (32), a distance from the second member (342) to the first member (341) in the radial direction of the transition piece (32), which is referred to as a height (h) of the gas space (S), varies along an axial direction of the transition piece (32), and an opening ratio (Ãp) of the vent holes (343) is adjusted depending on the height (h) of the gas space (S). |
