Numerical and experimental studies of transpiration cooling film effectiveness over porous materials

M Hinse, K Yildiz, P Richer, B Jodoin… - … of Thermophysics and …, 2022 - arc.aiaa.org
Comprehensive experimental and numerical studies were performed to determine cooling
film effectiveness of transpiration cooling over porous materials. The cooling film …

Numerical investigation on transpiration cooling performance with different porosities and mainstream pressure gradients

Y Yang, J Mao, P Chen, H Zhang, H Tang - International Journal of Thermal …, 2023 - Elsevier
Improving transpiration cooling performance is a challenge to meet the requirements for the
cooling performance and thermal stress restrict. In the current study, numerical simulations …

Cooling effects of the derived coolant-film layer from partitioned porous injectors for transpiration cooling

Z Zhang, X Wang - International Journal of Heat and Fluid Flow, 2024 - Elsevier
This study aims to reveal the cooling benefits of the derived coolant film from partitioned
porous injectors for transpiration cooling. The near-wall flow development and the cooling …

Effect of pore plugging on transpiration cooling performance implemented with perforated flat plates

H Ma, L Yang, Y Luan, H Sun, F Magagnato - … Communications in Heat …, 2024 - Elsevier
Transpiration cooling is expected to be one of the most effective cooling technologies for gas
turbine blades. However, dust deposition can easily lead to pore plugging, which limits its …

Experimental study on transpiration cooling through additively manufactured porous structures

C Poupinha, S Kozlowska, JS Lluch, D Altimare… - International Journal of …, 2024 - Elsevier
Film cooling and thermal barrier coating are the most common external cooling techniques
used for gas turbine components. In film cooling, coolant air is brought to the external …

Numerical study of transpiration cooling at different outlet angles and hole pattern

X Wang, X Fan, B Xiong - International Journal of Heat and Fluid Flow, 2024 - Elsevier
The effects of transpiration cooling depends on the distribution of micropores in porous
materials. The work simplifies the porous medium to a micro-scale pore plate structure that is …

Numerical simulations on the performance of transpiration cooling implemented with perforated flat plates

H Sun, H Ma, L Yan, H Fu, Y Luan, P Zunino - Applied Thermal Engineering, 2024 - Elsevier
Transpiration cooling is an effective method of protecting high-temperature components.
However, this technology is currently not applicable to turbine blades because conventional …

Effects of local geometry and boundary condition variations on transpiration cooling

YQ Liu, YB Xiong, PX Jiang, YP Wang… - International Journal of …, 2013 - Elsevier
The influences of the thermal conductivity and porosity of the porous wall and locally
extraordinarily high heat fluxes on the hot surface and the location of a low porosity region …

Exploration of local transpiration cooling method and numerical study of cooling performance

X Wang, X Fan, W Li, B Xiong, Y Jiang - International Communications in …, 2024 - Elsevier
Compared to other thermal protection methods, transpiration cooling has a higher cooling
efficiency, but its cooling impact is more influenced by the surrounding thermal and …

Numerical investigation of flow distribution and transpiration cooling performance in heterogeneous porous media with reacting coolant

L Han, Y Zhang, Z Zhang, W Zhang, S Liu… - Applied Thermal …, 2024 - Elsevier
The micro structure of porous media has significant impact on transpiration cooling
performance. In this study, the flow distribution and transpiration cooling performance are …