Turbine shroud assembly

A turbine ring assembly comprising a plurality of ring sectors made of ceramic matrix composite material forming a turbine ring and a ring support structure, each ring sector having, along a cutting plane defined by an axial direction and a radial direction of the turbine ring, a portion forming an annular base with, in the radial direction of the turbine ring, a radially inner face defining the inner face of the turbine ring and a radially outer face from which a first and a second attachment lug protrude, the ring support structure including a central shroud from which protrude a first and a second radial clamp from which the first and second attachment lugs of each ring sector are held,

• the turbine ring assembly further comprising a first annular flange disposed upstream of the turbine ring and of the first radial clamp relative to the direction of an air stream intended to pass through the turbine ring assembly and having in the radial direction a first free end, a second end opposite to the first end, a first portion extending from the first end, and a second portion extending between the first portion and the second end,
• the first portion of the first flange bearing against the first attachment lug, the second portion of the first flange being fixed to the first radial clamp of the central shroud of the ring support structure, and
• wherein the first portion of the first annular flange comprising a plurality of radial slits which lead to the first end of the first annular flange and which delimit first-portion sectors of the first annular flange, the radial slits passing through the axial direction,
• the first annular flange comprising, for each radial slit, a discharge orifice, and each radial slit leads, on the one hand, to the first end of the first annular flange and, on the other hand, into the discharge orifice.