... reduces the cross-flow impact and local thermal gradient. The staging of cooling air for the target surface also offers better utilization of the cooling capacity. Even by using 50% of the coolant designed for the single-stage impingement cooling, the multi-stage case can still sufficiently cool...

... 16 11 2020 impingement cooling single-stage impingement cooling multi-stage impingement cooling cross flow heat transfer coefficient optimization variable impingement hole size constant impingement hole size inter-stage bypass computational fluid dynamics (CFD) Impingement...