Effect of blade surface cooling on a micro transonic axial compressor performance at low Reynolds number

H Cheng, Z Li, C Zhou, X Lu, S Zhao, G Han - Applied Thermal Engineering, 2023 - Elsevier
Due to the high ratio of surface area to volume and the limitations of manufacturing
precision, the impact of wall temperature and heat transfer on the aerodynamic performance …

Aerothermal optimization of turbine cascade squealer tip with non-uniform squealer height

H Cheng, H Shahid, S Zhou, W Wang, Q Xu… - Physics of Fluids, 2023 - pubs.aip.org
The squealer tip has significant influence on both the aerodynamic and heat transfer
characteristics of the high-pressure turbine blade. However, due to the complexity of …

Optimization of turbine cascade squealer tip cooling design by combining shaping and flow injection

PH Duan, L He - Journal of turbomachinery, 2021 - asmedigitalcollection.asme.org
In this study, a turbine cascade squealer tip is optimized by a multi-objective genetic
algorithm (MOGA) with varying squealer heights and tip cooling configurations. The three …

Cutback squealer tip trailing edge cooling performance

S Lu, H Ma, Q Zhang, J Teng - International Journal of Heat and Mass …, 2020 - Elsevier
The trailing edge tip region has always been the most vulnerable part of high-pressure
turbine blade. The requirements for both aerodynamic efficiency and cooling effectiveness …

Wake effects on heat transfer from a turbine blade tip with different configurations and its corresponding shroud

SM Choi, M Bang, HK Moon, HH Cho - International Communications in …, 2021 - Elsevier
The wakes that occur periodically owing to blade rotation, affect the HTCDs (heat transfer
coefficient distributions) on the turbine blade tip and shroud. We investigated the wake …

Towards desensitization of gas turbine performance to tip Clearance: Design optimization and engine analysis

V Andreoli, G Paniagua, M Bloxham - Energy Conversion and Management, 2021 - Elsevier
Increased scrutiny on aviation's environmental footprint has precipitated a dramatic increase
in gas turbine technology development, with a focus on engine performance improvements …

Aerothermal optimization of turbine squealer tip geometries with arbitrary cooling injection

C De Maesschalck, V Andreoli… - Journal of …, 2021 - asmedigitalcollection.asme.org
The optimization of the turbine rotor tip geometry remains a vital opportunity to create more
efficient and durable engines. Balancing the aerodynamic and thermal aspects, while …

Multi-objective optimization design of aerothermal performance for turbine blade squealer tip with inclined suction-side rim

C Xu, M Huang, Z Li, J Li - International Journal of Thermal Sciences, 2024 - Elsevier
To optimize the inclined rim design, multi-objective optimization was numerically conducted
on the suction-side rim of the squealer tip in the GE-E3 rotor blade. The RANS equations …

Experimental optimization of butterfly-shaped film cooling hole configuration with a 30 degree injection angle

JY Jeong, YR Jo, GM Kim, YJ Kang, MS Kang… - International Journal of …, 2024 - Elsevier
Film cooling is one of the external cooling techniques that is widely applied to the hot-gas
path components of a gas turbine, forming a thin film of a coolant on the surface to prevent …

Application of multiscale methodology for transonic turbine blade tip cooling design

PH Duan, L He - Journal of Turbomachinery, 2020 - asmedigitalcollection.asme.org
Recent research suggests that the cooling flow at transonic turbine tip has several unique
flow features such as the strong interaction with the base flow, the acceleration at divergent …