Cmc Articles Having Small Complex Features For Advanced Film Cooling

Abstract: ABSTRACT An engine component [80] for a gas turbine engine [10] generating hot combustion gas flow [H] is provided. The engine component [80] can include a substrate [82] constructed from a CMC material and having a hot surface [84] facing the hot combustion gas flow [H] and a cooling surface [86] facing a cooling fluid flow [C]. The substrate [82] defines a film hole [90] extending through the substrate [82] and having an inlet [92] provided on the cooling surface [86], an outlet [94] provided on the hot surface [84], and a passage [96] connecting the inlet [86] and the outlet [94]. The engine component [80] also includes a flow conditioning structure [112] provided upstream of the outlet [94] on the hot surface [84]. The flow conditioning structure [112] can include a ridge extending from the hot surface [84].

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