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Automatic Transition Prediction in a Hybrid Flow Solver, Part 1: Methodology and Sensitivities

Krumbein, Andreas and Krimmelbein, Normann and Schrauf, Géza (2009) Automatic Transition Prediction in a Hybrid Flow Solver, Part 1: Methodology and Sensitivities. Journal of Aircraft, 46 (4, I), pp. 1176-1190. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.39736 ISSN 0021-8669

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Official URL: http://www.aiaa.org/content.cfm?pageid=406


A hybrid Reynolds-averaged Navier�Stokes solver, a laminar boundary-layer code, and a fully automated local, linear stability code were coupled to predict the laminar�turbulent transition due to Tollmien�Schlichting and crossflow instabilities using the eN method based on the two-N-factor approach. The coupled system was designed to be applied to three-dimensional aircraft configurations which are of industrial relevance. The transition prediction methodology provides two different approaches which are available to be used in different flow situations. Both approaches are described and tested in detail. The application of the complete coupled system to a two-dimensional two-element airfoil configuration and a three-dimensional generic full aircraft configuration is described and documented in this paper. The prediction of the laminar�turbulent transition lines was done in a fully automatic manner. It will be shown that complex aircraft configurations can be handled without a priori knowledge of the transition characteristics of the specific flow problem. The computational results are partially compared to experimental data. This article is the first of two companion papers: the first dealing with the transition prediction methodology and the second dealing with the practical application of the coupled system.

Item URL in elib:https://elib.dlr.de/59745/
Document Type:Article
Title:Automatic Transition Prediction in a Hybrid Flow Solver, Part 1: Methodology and Sensitivities
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krimmelbein, NormannTU-BS, ISM (jetzt: DLR, AS-CASE)UNSPECIFIED
Schrauf, GézaAirbus, BremenUNSPECIFIED
Date:August 2009
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.2514/1.39736
Page Range:pp. 1176-1190
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:automatic transition prediction, Reynolds averaged Navier-Stokes, TAU code, eN method, transition, boundary layer
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts & Integration (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Krumbein, Dr.-Ing. Andreas
Deposited On:24 Aug 2009 11:51
Last Modified:20 Mar 2015 11:29

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