Adaptive Division and Analysis Data Extraction of Air-Cooled Turbine Blade for Pipe Network Calculation

Abstract

Manually preparing the data for the analysis of the calculation of a pipe network of air-cooled turbine blades is inefficient. In this paper, a method to adaptively divide the blade model and extract data of the flow units is proposed. In this method, the topological lines of the flow channels for the calculations of the pipe network were extracted based on the simulatedfluid flow. The abstracted lines of the fluid flow area were used to replace the manual interpretation of expertsto realize the adaptive division of the flow units and to understand the connection relationship of the units and the layout of the spatial network. In addition, by establishing a basic flow unit library and constructing a specific algorithm, we quickly extracted the data from the typical flow units. Finally, the proposed method and algorithm were verified with a representative case study. The results illustrated that our method could cut down the pre-processing in the calculation of the pipe network of air-cooled turbine blades to several minutes from the several hours required for the manual method while providing reliable quality.

Numerical Study on the Effect of Partial Delamination of Thermal Barrier Coating on the Cooling Effect of Turbine Blade

“…The results showed that the maximum temperature of the blade decreased by 19K, and the average temperature decreased by 34K. Wang Yinglong et al [8] studied the temperature field of turbine blades with additional thermal barrier coatings using a coupled gas-thermal numerical method. The study revealed that the mainstream inlet temperature had the greatest impact on the thermal insulation effect of the thermal barrier coating, and the insulation efficiency remained at around 24% as the temperature increased.…”