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Aerodynamic design of a gas turbine rotor blade for the KTH test turbine

Anton, Nicholas and Wiberg, William (2013) In ISRN LUTMDN/TMHP--13/5284--SE
Department of Energy Sciences
Abstract
The purpose of the thesis was to design a new rotor blade for the KTH test turbine
according to present design guidelines for gas turbines manufactured at Siemens
Industrial Turbomachinery in Finspång. Stage one of a real gas turbine was used as a
reference for the aerodynamic design providing a starting point for the project. Using
similar gas conditions the new rotor blade was optimized with regard to metal angles
and pitch/chord ratio at reference scale. With a satisfying geometry the new blade
was scaled back to test turbine size. The blade design could be evaluated and
modified using several different in house codes: MAC1, used for meanline design,
Beta2 for through flow design, CATO for airfoil design and Multall for 3D... (More)
The purpose of the thesis was to design a new rotor blade for the KTH test turbine
according to present design guidelines for gas turbines manufactured at Siemens
Industrial Turbomachinery in Finspång. Stage one of a real gas turbine was used as a
reference for the aerodynamic design providing a starting point for the project. Using
similar gas conditions the new rotor blade was optimized with regard to metal angles
and pitch/chord ratio at reference scale. With a satisfying geometry the new blade
was scaled back to test turbine size. The blade design could be evaluated and
modified using several different in house codes: MAC1, used for meanline design,
Beta2 for through flow design, CATO for airfoil design and Multall for 3D design.
During the project certain reference specifications restricted the design and had to be
considered. ANSYS CFX was used to analyze the final geometry in great detail not
possible in any of the other software. The new blade was first analyzed at reference
scale and then once again evaluated in Beta2, Multall06 and ANSYS CFX at test
turbine scale. As a consequence of generally having low Reynolds number in model
tests the results are not entirely comparable with the real case. Effects of transition
using different transition models were assessed providing valuable information about
the expected differences (Less)
Please use this url to cite or link to this publication:
author
Anton, Nicholas and Wiberg, William
supervisor
organization
year
type
H1 - Master's Degree (One Year)
subject
keywords
design, gas turbine, rotor blade
publication/series
ISRN LUTMDN/TMHP--13/5284--SE
report number
5284
ISSN
0282-1990
language
English
id
3857854
date added to LUP
2013-06-19 11:37:21
date last changed
2013-06-19 11:37:21
@misc{3857854,
  abstract     = {The purpose of the thesis was to design a new rotor blade for the KTH test turbine
according to present design guidelines for gas turbines manufactured at Siemens
Industrial Turbomachinery in Finspång. Stage one of a real gas turbine was used as a
reference for the aerodynamic design providing a starting point for the project. Using
similar gas conditions the new rotor blade was optimized with regard to metal angles
and pitch/chord ratio at reference scale. With a satisfying geometry the new blade
was scaled back to test turbine size. The blade design could be evaluated and
modified using several different in house codes: MAC1, used for meanline design,
Beta2 for through flow design, CATO for airfoil design and Multall for 3D design.
During the project certain reference specifications restricted the design and had to be
considered. ANSYS CFX was used to analyze the final geometry in great detail not
possible in any of the other software. The new blade was first analyzed at reference
scale and then once again evaluated in Beta2, Multall06 and ANSYS CFX at test
turbine scale. As a consequence of generally having low Reynolds number in model
tests the results are not entirely comparable with the real case. Effects of transition
using different transition models were assessed providing valuable information about
the expected differences},
  author       = {Anton, Nicholas and Wiberg, William},
  issn         = {0282-1990},
  keyword      = {design,gas turbine,rotor blade},
  language     = {eng},
  note         = {Student Paper},
  series       = {ISRN LUTMDN/TMHP--13/5284--SE},
  title        = {Aerodynamic design of a gas turbine rotor blade for the KTH test turbine},
  year         = {2013},
}