0
research-article

INCIDENCE EFFECT ON THE AERO-THERMAL PERFORMANCE OF A FILM COOLED NOZZLE VANE CASCADE

[+] Author and Article Information
Hamed Abdeh

Università degli Studi di Bergamo, Dipartimento di Ingegneria e Scienze Applicate, 24044 Dalmine (BG) Italy
hamed.abdeh@unibg.it

Giovanna Barigozzi

Università degli Studi di Bergamo, Dipartimento di Ingegneria e Scienze Applicate, 24044 Dalmine (BG) Italy
giovanna.barigozzi@unibg.it

Antonio Perdichizzi

Università degli Studi di Bergamo, Dipartimento di Ingegneria e Scienze Applicate, 24044 Dalmine (BG) Italy
antonio.perdichizzi@unibg.it

Marc Henze

Ansaldo Energia Switzerland Ltd. 5401 Baden, Switzerland
marc.henze@ansaldoenergia.com

Joerg Krueckels

Ansaldo Energia Switzerland Ltd. 5401 Baden, Switzerland
joerg.krueckels@ansaldoenergia.com

1Corresponding author.

ASME doi:10.1115/1.4041923 History: Received September 19, 2018; Revised November 02, 2018

Abstract

In the present paper, the influence of inlet flow incidence on the aerodynamic and thermal performance of a film cooled linear nozzle vane cascade is fully assessed. Tests have been carried out on a solid and a cooled cascade. In the cooled cascade, coolant is ejected at the end wall through a slot located upstream of the leading edge plane. Moreover, a vane showerhead cooling system is also realized through 4 rows of cylindrical holes. The cascade was tested at a high inlet turbulence intensity level (Tu1 = 9%) and at a constant inlet Mach number of 0.12 and nominal cooling condition, varying the inlet flow angle in the range ±20°. The aero-thermal characterization of vane platform was obtained through 5-hole probe and end wall adiabatic film cooling effectiveness measurements. Vane load distributions and surface flow visualizations supported the discussion of the results. A relevant negative impact of positive inlet flow incidence on the cooled cascade aerodynamic and thermal performance was detected. A negligible influence was instead observed at negative incidence, even at the lowest tested value of -20°.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In