Computational Investigation into the Performance of Gas Turbine Preswirl Cooling Systems

Cagan M., Benim A. C., Gunes D.

7th IASME/WSEAS International Conference on Fluid Mechanics and Aerodynamics (FMA'09), Moscow, Russia, 20 - 22 August 2009, pp.62-63 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Moscow
  • Country: Russia
  • Page Numbers: pp.62-63
  • Istanbul Technical University Affiliated: Yes


A computational investigation of the performance of gas turbine cooling preswirl systems is carried out using a validated three-dimensional quasi-steady model. In the first phase of the study, the system is analyzed with respect to different operating conditions, for understanding its behavior. Here. the dependence of the discharge coefficient and the temperature drop on the inverse of the swirl ratio parameter are employed to characterize the system. In the second phase of the study, the possibilities of improving the system performance is investigated implementing different modifications on the system geometry.