Abstract
Based on a typical laminated configuration, a new cooling configuration that integrates internal and external enhancements is proposed in this paper. For external enhancement, discrete slot-trench film holes are utilized, while clapboards are introduced for internal improvement. Numerical results indicate that the extensibility and adhesiveness of the film are significantly enhanced by the discrete slot-trench film holes, resulting in an increase in the average adiabatic film cooling effectiveness of the externally improved configuration by 60.13% to 141.86% compared to the laminated configuration. The internal heat transfer area is increased by 55.31% by the clapboards, resulting in an average internal cooling effectiveness increase of 1.29% to 3.99% for the coupled improved configuration compared to the externally improved configuration. Due to these positive cooling effects, the coupled improved configuration shows an increase in average overall cooling effectiveness ranging from 11.55% to 14.39% under different blowing ratios, compared to the laminated configuration. Furthermore, the performance evaluation criteria for the coupled improved configuration are all greater than 1.0 under test conditions, indicating that the enhancement of overall cooling effectiveness does not cause significant total pressure losses.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
