On the Modal Analysis of Fast Response Aerodynamic Pressure Probe Data

Loris Simonassi; Manuel Zenz; Stefan Zerobin; Thorsten Selic; Franz Heitmeir; Andreas Marn

On the Modal Analysis of Fast Response Aerodynamic Pressure Probe Data

Loris Simonassi, Manuel Zenz, Stefan Zerobin, Thorsten Selic, Franz Heitmeir, Andreas Marn

Institute of Thermal Turbomachinery and Machine Dynamics (3190)

Research output: Contribution to conference › Paper

Abstract

This paper presents the analysis procedure adopted to study the unsteady aerodynamic measurement data obtained from a Fast Response Aerodynamic Pressure Probe (FRAPP) downstream of a low pressure turbine (LPT) rotor in a 1.5-stage turbine test rig. The method, which is based on the
acoustic theory of Tyler and Sofrin, focuses on the
investigation of the main structures constituting the
unsteady flow field.
In the last section of this paper, an example of applying the mentioned technique onto experimental data obtained in a subsonic turbine test facility is
shown. The interactions between the stator and rotor wakes, secondary flows and the turbine exit guide vanes (TEGVs) potential effect are identified, and
their importance in the assessment of the aerodynamic and aeroelastic performance of modern low pressure turbines is analysed.

Original language	English
Number of pages	8
Publication status	Published - Aug 2018
Event	XXIV Biannual Symposium on Measuring Techniques in Turbomachinery Transonic and Supersonic Flow in Cascades and Turbomachines - Prague, Czech Republic Duration: 29 Aug 2018 → 31 Aug 2018

Conference

Conference	XXIV Biannual Symposium on Measuring Techniques in Turbomachinery Transonic and Supersonic Flow in Cascades and Turbomachines
Abbreviated title	MTIT 2018
Country/Territory	Czech Republic
City	Prague
Period	29/08/18 → 31/08/18

Fields of Expertise

Mobility & Production

Cite this

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title = "On the Modal Analysis of Fast Response Aerodynamic Pressure Probe Data",

abstract = "This paper presents the analysis procedure adopted to study the unsteady aerodynamic measurement data obtained from a Fast Response Aerodynamic Pressure Probe (FRAPP) downstream of a low pressure turbine (LPT) rotor in a 1.5-stage turbine test rig. The method, which is based on theacoustic theory of Tyler and Sofrin, focuses on theinvestigation of the main structures constituting theunsteady flow field.In the last section of this paper, an example of applying the mentioned technique onto experimental data obtained in a subsonic turbine test facility isshown. The interactions between the stator and rotor wakes, secondary flows and the turbine exit guide vanes (TEGVs) potential effect are identified, andtheir importance in the assessment of the aerodynamic and aeroelastic performance of modern low pressure turbines is analysed.",

author = "Loris Simonassi and Manuel Zenz and Stefan Zerobin and Thorsten Selic and Franz Heitmeir and Andreas Marn",

year = "2018",

month = aug,

language = "English",

note = "XXIV Biannual Symposium on Measuring Techniques in Turbomachinery<br/>Transonic and Supersonic Flow in Cascades and Turbomachines, MTIT 2018 ; Conference date: 29-08-2018 Through 31-08-2018",

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TY - CONF

T1 - On the Modal Analysis of Fast Response Aerodynamic Pressure Probe Data

AU - Simonassi, Loris

AU - Zenz, Manuel

AU - Zerobin, Stefan

AU - Selic, Thorsten

AU - Heitmeir, Franz

AU - Marn, Andreas

PY - 2018/8

Y1 - 2018/8

N2 - This paper presents the analysis procedure adopted to study the unsteady aerodynamic measurement data obtained from a Fast Response Aerodynamic Pressure Probe (FRAPP) downstream of a low pressure turbine (LPT) rotor in a 1.5-stage turbine test rig. The method, which is based on theacoustic theory of Tyler and Sofrin, focuses on theinvestigation of the main structures constituting theunsteady flow field.In the last section of this paper, an example of applying the mentioned technique onto experimental data obtained in a subsonic turbine test facility isshown. The interactions between the stator and rotor wakes, secondary flows and the turbine exit guide vanes (TEGVs) potential effect are identified, andtheir importance in the assessment of the aerodynamic and aeroelastic performance of modern low pressure turbines is analysed.

AB - This paper presents the analysis procedure adopted to study the unsteady aerodynamic measurement data obtained from a Fast Response Aerodynamic Pressure Probe (FRAPP) downstream of a low pressure turbine (LPT) rotor in a 1.5-stage turbine test rig. The method, which is based on theacoustic theory of Tyler and Sofrin, focuses on theinvestigation of the main structures constituting theunsteady flow field.In the last section of this paper, an example of applying the mentioned technique onto experimental data obtained in a subsonic turbine test facility isshown. The interactions between the stator and rotor wakes, secondary flows and the turbine exit guide vanes (TEGVs) potential effect are identified, andtheir importance in the assessment of the aerodynamic and aeroelastic performance of modern low pressure turbines is analysed.

M3 - Paper

T2 - XXIV Biannual Symposium on Measuring Techniques in Turbomachinery<br/>Transonic and Supersonic Flow in Cascades and Turbomachines

Y2 - 29 August 2018 through 31 August 2018

ER -

On the Modal Analysis of Fast Response Aerodynamic Pressure Probe Data

Abstract

Conference

Fields of Expertise

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