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High Reynolds number transition experiments in the ETW test facility with the pathfinder model

Perraud, Jean and Salah El Din, Itham and Schrauf, Geza and Hanifi, Ardeshir and Donelli, Raffaele and Hein, Stefan and Fey, Uwe and Egami, Yasuhiro and Streit, Thomas (2010) High Reynolds number transition experiments in the ETW test facility with the pathfinder model. V European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2010, 14-17 June 2010, Lisbon, Portugal. ISBN 978-989-96778-1-4

Full text not available from this repository.

Abstract

The Pathfinder model was designed in the course of the TELFONA European Research Project as a calibration tool to evaluate the transonic, cryogenic ETW facility for laminar flow testing, and assess the possibility for studies of NLF or HLF wings in ETW. The Pathfinder wing is a simplified, low taper, swept wing with an optimized profile allowing almost linear evolution of the N-factors in a wide range of flow conditions, especially designed for a precise estimation of transition N-factors. Temperature sensitive paint is used to allow optical detection of the transition location, and a series of pressure taps is used for measuring the pressure distribution. This general paper will cover model design, pre-test numerical evaluation, instrumentation and measurement methods, and will present a first set of cases selected for stability analysis and transition evaluation. Various tools for stability analysis and transition predictions will be tested, from local stability theory with the envelope methods to nonlocal theories taking into account curvature and non-local effects, based on the parabolized stability equations or on a multiple scale approach for compressible flows.

Item URL in elib:https://elib.dlr.de/64014/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:High Reynolds number transition experiments in the ETW test facility with the pathfinder model
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Perraud, JeanONERAUNSPECIFIED
Salah El Din, IthamONERAUNSPECIFIED
Schrauf, GezaAirbusUNSPECIFIED
Hanifi, ArdeshirFOIUNSPECIFIED
Donelli, RaffaeleCIRAUNSPECIFIED
Hein, StefanUNSPECIFIEDUNSPECIFIED
Fey, UweUNSPECIFIEDUNSPECIFIED
Egami, YasuhiroUNSPECIFIEDUNSPECIFIED
Streit, ThomasUNSPECIFIEDUNSPECIFIED
Date:June 2010
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-13
Editors:
EditorsEmail
Pereira, J.C.F.UNSPECIFIED
Sequeira, A.UNSPECIFIED
Pereira, J.M.C.UNSPECIFIED
Series Name:CD-ROM Conference Proceedings
ISBN:978-989-96778-1-4
Status:Published
Keywords:laminar-turbulent transition, wind tunnel experiment (ETW), TELFONA, natural laminar flow
Event Title:V European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2010
Event Location:Lisbon, Portugal
Event Type:international Conference
Event Dates:14-17 June 2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Institute of Aerodynamics and Flow Technology > Experimental Methods
Institute of Aerodynamics and Flow Technology > Configuration Design
Deposited By: Hein, Dr.-Ing. Stefan
Deposited On:23 Jul 2010 11:05
Last Modified:23 Jul 2010 11:05

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