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CFD Simulations of the PAZY Wing in support of the Third Aeroelastic Prediction Workshop

Fehrs, Michael and Ritter, Markus Raimund and Helm, Sebastian and Mertens, Christoph (2022) CFD Simulations of the PAZY Wing in support of the Third Aeroelastic Prediction Workshop. In: International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022. IFASD 2022, 13.-17. Jun. 2022, Madrid, Spanien.

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Abstract

The Pazy Wing test case is a benchmark for the investigation of aeroelastic effects at very large deflections. Tip deformations in the order of 50% span were measured in wind tunnel tests, which renders this model highly attractive for the validation of numerical aeroelastic methods and tools for geometrically nonlinear, large deflection analyses. Due to the low flow velocity (up to 60 m/s) and the simple geometry of the wing, simulation programs based on subsonic, linear potential aerodynamic solvers (such as VLM and UVLM) are an ideal basis for static coupling and flutter simulations. However, more comprehensive analyses with focus on aerodynamic nonlinearities such as stall and limit cycle oscillations (which have been observed in several wind tunnel tests) are attractive research topics but call for advanced aerodynamic methods. The present work is thus focused on high fidelity aerodynamic simulations of the Pazy Wing using RANS with transition modeling in order to capture nonlinear effects originating from the particular shape of the wing and the low Reynolds number. It is a collaborative activity of DLR, NASA, and TU Delft and supports the Large Deflection Working Group (LDWG), which is one of the sub-groups of the 3rd Aeroelastic Prediction Workshop (AePW3).

Item URL in elib:https://elib.dlr.de/187023/
Document Type:Conference or Workshop Item (Speech)
Title:CFD Simulations of the PAZY Wing in support of the Third Aeroelastic Prediction Workshop
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Fehrs, MichaelMichael.Fehrs (at) dlr.deUNSPECIFIED
Ritter, Markus RaimundMarkus.Ritter (at) dlr.dehttps://orcid.org/0000-0003-3828-0397
Helm, SebastianSebastian.Helm (at) dlr.deUNSPECIFIED
Mertens, Christophc.mertens (at) tudelft.nlUNSPECIFIED
Date:June 2022
Journal or Publication Title:International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CFD, Free Transition, Gamma Transition Model, SST Turbulence Model, Low Reynolds, Pazy Wing, Aeroelastic Prediction Workshop
Event Title:IFASD 2022
Event Location:Madrid, Spanien
Event Type:international Conference
Event Dates:13.-17. Jun. 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Digital Technologies
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulation
Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Deposited By: Fehrs, Michael
Deposited On:29 Jun 2022 14:45
Last Modified:29 Jun 2022 14:45

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