IMPINGEMENT COOLING MECHANISM, TURBINE BLADE AND COMBUSTOR

摘要

The invention relates to an impingement cooling mechanism (1) that sprays a cooling gas (G) toward a cooling target (2) from multiple impingement holes (4) formed in a facing member (3) disposed facing the cooling target (2). Turbulent flow-promoting parts (6) are provided in the channel for the cross flow (CF), which is the flow formed by the cooling gas (G) after being sprayed from the impingement holes (4). The turbulent flow-promoting parts (6) are configured so as to promote turbulent from the upstream side to the downstream side of the cross flow (CF).