Optimization of film hole row locations of a nozzle guide vane using network approach

Fluid–thermal network simulations have been performed to optimize the each film hole row location of a high-pressure guide vane. In the present work, the optimized row locations were identified to minimize the coolant flow with different number of film holes configuration subjected to almost uniform surface temperature distribution on the nozzle guide vane. FlownexR2017 software was used to identify the optimal row location of a typical film-cooled vane. The results show that it is a useful simulation tool to obtain reduced pressure drop of film hole row in a relatively short turnaround time.