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Effect of spanwise variation of chord on the performance of a turbine cascade

Deshpande, Srikanth LU ; Pradeep, A. M.; Thern, Marcus LU and Genrup, Magnus LU (2017) ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, GT 2017 In Turbomachinery 2A-2017.
Abstract

This paper compares the aerodynamic performance of two cascade designs, viz.: -constant-chord and varying-chord. The varying-chord design is typical of industrial gas turbines and steam turbine stators in order to reduce manufacturing costs. The present study aims to increase the understanding of the implications of this manufacturing constraint on the aerodynamics of the stator. Experiments are carried out in a linear cascade wind tunnel. Numerical simulations are performed using commercial code CFX. The profile losses and secondary losses in the two designs are compared. The overall total pressure losses indicate better aerodynamic performance of a turbine cascade with constant chord as compared to a turbine cascade of varying-chord... (More)

This paper compares the aerodynamic performance of two cascade designs, viz.: -constant-chord and varying-chord. The varying-chord design is typical of industrial gas turbines and steam turbine stators in order to reduce manufacturing costs. The present study aims to increase the understanding of the implications of this manufacturing constraint on the aerodynamics of the stator. Experiments are carried out in a linear cascade wind tunnel. Numerical simulations are performed using commercial code CFX. The profile losses and secondary losses in the two designs are compared. The overall total pressure losses indicate better aerodynamic performance of a turbine cascade with constant chord as compared to a turbine cascade of varying-chord design

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Turbomachinery
volume
2A-2017
publisher
American Society Of Mechanical Engineers (ASME)
conference name
ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, GT 2017
external identifiers
  • scopus:85028956151
ISBN
9780791850787
DOI
10.1115/GT2017-63521
language
English
LU publication?
yes
id
e31fff52-5d1f-4eab-9457-6e3e8aa0afc3
date added to LUP
2017-09-28 08:04:23
date last changed
2018-01-07 12:19:50
@inproceedings{e31fff52-5d1f-4eab-9457-6e3e8aa0afc3,
  abstract     = {<p>This paper compares the aerodynamic performance of two cascade designs, viz.: -constant-chord and varying-chord. The varying-chord design is typical of industrial gas turbines and steam turbine stators in order to reduce manufacturing costs. The present study aims to increase the understanding of the implications of this manufacturing constraint on the aerodynamics of the stator. Experiments are carried out in a linear cascade wind tunnel. Numerical simulations are performed using commercial code CFX. The profile losses and secondary losses in the two designs are compared. The overall total pressure losses indicate better aerodynamic performance of a turbine cascade with constant chord as compared to a turbine cascade of varying-chord design</p>},
  author       = {Deshpande, Srikanth and Pradeep, A. M. and Thern, Marcus and Genrup, Magnus},
  booktitle    = {Turbomachinery},
  isbn         = {9780791850787},
  language     = {eng},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  title        = {Effect of spanwise variation of chord on the performance of a turbine cascade},
  url          = {http://dx.doi.org/10.1115/GT2017-63521},
  volume       = {2A-2017},
  year         = {2017},
}