Experimental investigation on additively manufactured transpiration and film cooling structures

Z Min, G Huang, SN Parbat… - Journal of …, 2019 - asmedigitalcollection.asme.org
The last 50 years has witnessed significant improvement in film cooling technologies while
transpiration cooling is still not implemented in turbine airfoil cooling. Although transpiration …

An experimental investigation on transpiration cooling part II: comparison of cooling methods and media

JH Wang, J Messner, H Stetter - International Journal of …, 2004 - Wiley Online Library
This article attempts to provide a cooling performance comparison of various mass transfer
cooling methods and different cooling media through two experiments. In the first …

Transpiration cooling for additive manufactured porous plates with partition walls

G Huang, Z Min, L Yang, PX Jiang, M Chyu - International Journal of Heat …, 2018 - Elsevier
Transpiration cooling is an effective method to protect high heat flux surfaces such as rocket
combustion chambers. However, this technology is currently not applicable for turbine …

Experimental investigation of effusion and transpiration air cooling for single turbine blade

M Kim, DH Shin, JS Kim, BJ Lee, J Lee - Applied Thermal Engineering, 2021 - Elsevier
A great number of studies have been conducted on a film cooling for turbine blades, which is
to prevent thermal damage on blades originated from high turbine inlet temperature …

Effects of coolant feed direction on additively manufactured film cooling holes

CK Stimpson, JC Snyder… - Journal of …, 2018 - asmedigitalcollection.asme.org
Gas turbine components subjected to high temperatures can benefit from improved designs
enabled by metal additive manufacturing (AM) with nickel alloys. Previous studies have …

Transpiration cooling with phase change by functionally graded porous media

Z Cheng, R Xu, P Jiang - International Journal of Heat and Mass Transfer, 2023 - Elsevier
Transpiration cooling using liquid coolants is considered one of the most promising thermal
protection techniques for new generation aerospace vehicles. The leading edges are …

Characterization of laser additive manufacturing-fabricated porous superalloys for turbine components

B Ealy, L Calderon, W Wang… - … for Gas Turbines …, 2017 - asmedigitalcollection.asme.org
The limits of gas turbine technology are heavily influenced by materials and manufacturing
capabilities. Lately, incremental performance gains responsible for increasing the allowable …

Transpiration cooling: contribution of film cooling to the overall cooling effectiveness

GE Andrews, AA Asere, MC Mkpadi… - International Journal of …, 1986 - degruyter.com
The overall cooling effectiveness of a plane 152 mm square transpiration wall was
measured on a simulated gas turbine combustion chamber. Boundary layer temperature …

Heat Transfer and Pressure Loss of Additively Manufactured Internal Cooling Channels With Various Shapes

AJ Wildgoose, KA Thole - Journal of …, 2023 - asmedigitalcollection.asme.org
Additive manufacturing (AM) provides the ability to fabricate highly customized internal
cooling passages that are relevant to gas turbine components. This experimental study …

Thermal-hydraulic performance of additively manufactured lattices for gas turbine blade trailing edge cooling

I Kaur, Y Aider, K Nithyanandam, P Singh - Applied Thermal Engineering, 2022 - Elsevier
Gas turbine blade trailing edge cooling is challenging because of the stringent geometrical
constraints driven by aerodynamics and thermal stresses. The blade topology becomes …