Fluid-network Analysis Method for Conjugating Internal and External Cooling of Turbines
The fluid-network analysis method is of great significance in the design of cooling schemes for gas turbine blades.The continuous improvement of turbine inlet temperature poses challenges to the calculation speed and accuracy of the fluid-network method.On the basis of traditional fluid-network methods,this research considers the conjugate effect of internal and external cooling of blades,develops a fluid-network analysis method of internal and external cooling conjugating,and builds a prediction platform.This research selects a typical aviation high-temperature turbine blades for accuracy verification,and the results show that compared to traditional method,the prediction error of this method is reduced from 6.54%to 4.91%.This method helps to improve the design accuracy and provides support for the next generation of high-performance gas turbine design.