TY - JOUR
T1 - Experimental and Numerical Investigation of a Turbine Vane Frame with Splitters at Different Operating Points †
AU - Pramstrahler, Simon
AU - Peters, Andreas
AU - García De Albéniz, Mikel Lucas
AU - Leitl, Peter Adrian
AU - Heitmeir, Franz
AU - Marn, Andreas
N1 - Publisher Copyright:
© 2023 by the authors.
This paper is an extended version of our paper published in Proceedings of the 15th European Turbomachinery Conference, Budapest, Hungary, 24–28 April 2023
PY - 2023/12
Y1 - 2023/12
N2 - A turbine vane frame is a special type of intermediate turbine duct, and is one option to improve the efficiency and reduce the length and weight of an aero-engine. However, due to its geometry, it features a complex flow field, and therefore in-depth aerodynamic investigations are necessary. Especially for aviation, every component needs to function reliably during all operating points. To perform this study at the Institute for Thermal Turbomachinery at the Graz University of Technology, the Subsonic Test Turbine Facility for Aerodynamic, Aeroacoustic and Aeroelastic Investigations was equipped with a turbine vane frame and a low-pressure turbine located downstream. Measurements were taken with aerodynamic five-hole probes for three operating points, and were compared with steady-state and transient simulations as well as analytic solutions for the pressure drop in the TVF. Finally, the most important loss mechanisms are described.
AB - A turbine vane frame is a special type of intermediate turbine duct, and is one option to improve the efficiency and reduce the length and weight of an aero-engine. However, due to its geometry, it features a complex flow field, and therefore in-depth aerodynamic investigations are necessary. Especially for aviation, every component needs to function reliably during all operating points. To perform this study at the Institute for Thermal Turbomachinery at the Graz University of Technology, the Subsonic Test Turbine Facility for Aerodynamic, Aeroacoustic and Aeroelastic Investigations was equipped with a turbine vane frame and a low-pressure turbine located downstream. Measurements were taken with aerodynamic five-hole probes for three operating points, and were compared with steady-state and transient simulations as well as analytic solutions for the pressure drop in the TVF. Finally, the most important loss mechanisms are described.
KW - aerodynamics
KW - CFD
KW - intermediate turbine duct
KW - off-design
KW - turbomachinery
UR - http://www.scopus.com/inward/record.url?scp=85180552033&partnerID=8YFLogxK
U2 - 10.3390/ijtpp8040049
DO - 10.3390/ijtpp8040049
M3 - Article
AN - SCOPUS:85180552033
SN - 2504-186X
VL - 8
JO - International Journal of Turbomachinery, Propulsion and Power
JF - International Journal of Turbomachinery, Propulsion and Power
IS - 4
M1 - 49
ER -