[HTML][HTML] Overall thermal performances of backward film cooling with simulated surface thermal barrier coatings at various walls

J Pu, T Zhang, W Zhou, J Wang, W Wu - Case Studies in Thermal …, 2022 - Elsevier
Backward film cooling can protect more efficiently some regions of turbine hot components,
in comparison with the forward jet. The rapid increase of operational temperature requires …

Wall thickness and injection direction effects on flat plate full-coverage film cooling arrays: Adiabatic film effectiveness and heat transfer coefficient

W Li, X Lu, X Li, J Ren, H Jiang - International Journal of Thermal Sciences, 2019 - Elsevier
Adiabatic film effectiveness and heat transfer coefficient were determined for a full-coverage
effusion cooled surface which simulates a portion of a gas turbine blade. Adiabatic film …

Adiabatic effectiveness and heat transfer measurements of simple and trenched cylindrical holes with backward injection

B Shi, X Li, J Ren - International Journal of Thermal Sciences, 2021 - Elsevier
Recent studies have demonstrated that the simple cylindrical hole with backward injection,
where the jets are injected reverse to the mainstream flow direction, outperforms its forward …

Large eddy simulations for film cooling assessment of cylindrical and laidback fan-shaped holes with reverse injection

AK Singh, K Singh, D Singh… - Journal of …, 2021 - asmedigitalcollection.asme.org
The large eddy simulations (LES) are performed to access the film cooling performance of
cylindrical and reverse shaped hole for forward and reverse injection configurations. In the …

Numerical investigation on backward-injection film cooling with upstream ramps

S Zhang, C Wang, X Tan, J Zhang, J Guo - Energies, 2022 - mdpi.com
The present study investigates the effects of upstream ramps on a backward-injection film
cooling over a flat surface. Two ramp structures, referred to as a straight-wedge-shaped …

High resolution heat transfer measurements of cylindrical holes embedded in a trench with backward injection

B Shi, X Li, J Ren, H Jiang - … Expo: Power for …, 2018 - asmedigitalcollection.asme.org
Recent studies have demonstrated that cylindrical hole with backward injection
arrangement, of which the jets are injected reverse to the mainstream flow direction …

Coolant Jets Blowing Across the Airfoil Stagnation Line to Enhance Film Effectiveness

NE Holgate, PT Ireland… - Journal of …, 2020 - asmedigitalcollection.asme.org
A novel airfoil leading edge film cooling design has been investigated, and its performance
over conventional alternatives quantified. In conventional designs, the region near the …