№ files_lp_4_process_3_106556
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Conference extended abstract presenting numerical research on the influence of unsteady turbulence modelling in frequency-domain aeroelastic simulations of a low-pressure turbine rotor blade within turbomachinery flow analysis.
Year: 2022
Event: 16th International Symposium on Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines (ISUAAAT16)
Location: Toledo, Spain
Dates: September 26–30, 2022
Document Type: Extended Abstract of Conference Paper
Research Field: Unsteady Aerodynamics and Aeroelasticity of Turbomachinery
Paper Title: Investigation of the impact of unsteady turbulence effects on the aeroelastic evaluation process of a LPT rotor blade
Authors: Jan Ph. Heners; Damian Vogt; Christian Frey; Graham Ashcroft
Affiliations: MTU Aero Engines AG, Munich; Institute of Thermal Turbomachinery and Machine Laboratory, University of Stuttgart; Institute of Propulsion Technology, German Aerospace Center (DLR), Cologne
Corresponding Author: Jan Ph. Heners
Corresponding Author Email: [email protected]
Studied System: 1.5 stage low-pressure turbine (LPT) configuration
Numerical Methods: Nonlinear Harmonic Balance (HB) method; Unsteady Reynolds-Averaged Navier–Stokes (URANS) solver; Lanczos filter technique
Software / Solver: TRACE finite-volume flow solver
Turbulence Model: k-ω turbulence model with transition model
Main Objective: Evaluation of unsteady turbulence effects in frequency-domain aeroelastic analysis
Key Phenomena: Unsteady turbulence kinetic energy and turbulent dissipation effects on rotor blade surface pressure fluctuations
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Investigation of the impact of unsteady turbulence effects on the aeroelastic evaluation process of a LPT rotor blade
Year: 2022
Region / City: Toledo, Spain
Topic: Aeroelasticity, Unsteady Aerodynamics
Document Type: Extended Abstract
Organization: MTU Aero Engines AG, ITSM Institute of Thermal Turbomachinery and Machine Laboratory, University of Stuttgart, German Aerospace Center (DLR)
Authors: Jan Ph. Heners, Damian Vogt, Christian Frey, Graham Ashcroft
Target Audience: Aeroelasticity researchers, Turbomachinery engineers
Period of Validity: Not specified
Approval Date: Not specified
Date of Changes: Not specified
Corresponding Author: Jan Ph. Heners
Email of Corresponding Author: [email protected]
Objectives: Aeroelasticity, Unsteady Aerodynamics, NLH-Method
Methods: Nonlinear Harmonic Balance approach, Unsteady Reynolds-Averaged Navier-Stokes equations
Main Results: Pressure fluctuations and comparison of different solver approaches
Summary and Conclusion: The study emphasizes the importance of considering unsteady turbulence effects for higher accuracy in aeroelastic analysis and proposes a developed filter method to improve numerical stability in frequency domain solvers.
Dynamics of Unsteady Laminar Separation Bubble Near Stall on a NACA 0012 Airfoil
Year: 2026
Region / Institution: Aerodynamics Research Laboratory
Subject: Aerodynamics / Laminar Separation Bubble
Document Type: Research Article
Author: Not specified
Target Audience: Aerodynamics researchers and engineers
Experimental Setup: NACA 0012 airfoil at chord-based Reynolds number of 1.8 × 10⁵
Angles of Attack: 10.5°–13°
Measurements: Surface pressures, particle image velocimetry, hot-wire anemometry
Flow Regimes: Attached, quasi-periodic oscillation, fully separated
Frequency Analysis: Dominant low-frequency oscillation ~4 Hz, Strouhal number 0.0184
Investigation of the impact of unsteady turbulence effects on the aeroelastic evaluation process of a LPT rotor blade
Year: 2022
Region / City: Toledo, Spain
Topic: Aeroelasticity, Unsteady Aerodynamics
Document Type: Extended Abstract
Organization: MTU Aero Engines AG, ITSM Institute of Thermal Turbomachinery and Machine Laboratory, University of Stuttgart, German Aerospace Center (DLR)
Authors: Jan Ph. Heners, Damian Vogt, Christian Frey, Graham Ashcroft
Target Audience: Aeroelasticity researchers, Turbomachinery engineers
Period of Validity: Not specified
Approval Date: Not specified
Date of Changes: Not specified
Corresponding Author: Jan Ph. Heners
Email of Corresponding Author: [email protected]
Objectives: Aeroelasticity, Unsteady Aerodynamics, NLH-Method
Methods: Nonlinear Harmonic Balance approach, Unsteady Reynolds-Averaged Navier-Stokes equations
Main Results: Pressure fluctuations and comparison of different solver approaches
Summary and Conclusion: The study emphasizes the importance of considering unsteady turbulence effects for higher accuracy in aeroelastic analysis and proposes a developed filter method to improve numerical stability in frequency domain solvers.
Investigation of the impact of unsteady turbulence effects on the aeroelastic evaluation process of a LPT rotor blade
Year: 2022
Region / City: Toledo, Spain
Topic: Aeroelasticity, Unsteady Aerodynamics
Document Type: Extended Abstract
Organization: MTU Aero Engines AG, ITSM Institute of Thermal Turbomachinery and Machine Laboratory, University of Stuttgart, German Aerospace Center (DLR)
Authors: Jan Ph. Heners, Damian Vogt, Christian Frey, Graham Ashcroft
Target Audience: Aeroelasticity researchers, Turbomachinery engineers
Period of Validity: Not specified
Approval Date: Not specified
Date of Changes: Not specified
Corresponding Author: Jan Ph. Heners
Email of Corresponding Author: [email protected]
Objectives: Aeroelasticity, Unsteady Aerodynamics, NLH-Method
Methods: Nonlinear Harmonic Balance approach, Unsteady Reynolds-Averaged Navier-Stokes equations
Main Results: Pressure fluctuations and comparison of different solver approaches
Summary and Conclusion: The study emphasizes the importance of considering unsteady turbulence effects for higher accuracy in aeroelastic analysis and proposes a developed filter method to improve numerical stability in frequency domain solvers.
Topics: unsteady aeroelastic rotor