| 摘要 |
<p>Methods and apparatus for inspecting cooling holes (22) in a wall (24) of a combustor (16) of a gas turbine engine (10) are disclosed. A method may comprise heating the wall (24) of the combustor (16), directing a flow of cooling fluid through the cooling holes (22) while the wall (24) is being heated, acquiring a first measurement indicative of a flow rate of the cooling fluid through the cooling holes (22) and acquiring a second measurement indicative of a cooling effectiveness provided by the cooling fluid flowing through the cooling holes (22) at the flow rate.
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