... duct design, called the “close-coupled combustor-turbine interface.” The “impingement vortex” seen in previous studies with combustor cooling appears as the dominant secondary flow. It is observed in the present study over a wide range of flowrates, confirming its tie to the combustor coolant flowrate...

..., it was shown in recent studies that combustor coolant introduced upstream of the vane passage changes secondary flow patterns in the passage. This results in a different secondary flow vortex system, called the “impingement vortex” system. It was discussed in recent literature having combustor coolant...

... discovered Impingement Vortex , which redefines our understanding of the aerodynamics of flow in a modern, film-cooled, first-stage vane row. The second part investigates, through thermal measurements, the distribution, mixing, and disruption of cooling flows over the endwall. Measurements are made...

... edge due to louver coolant penetration of the mainstream. Due to the impingement vortex, coolant coverage along the pressure surface from the endwall to about 20% of the span is seen in all cases. Changes in the MFR values of both film coolant and louver coolant do not significantly affect...

... of impingement vortex strength as MFR changes. The effects of these changes of secondary flows on coolant distribution are presented. Email: alqef002@umn.edu Email: nawat001@umn.edu Email: pchen09@outlook.com Email: ruizhu@mail.nwpu.edu.cn Email: kim_yong_w@solarturbines.com Email...