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On Modeling of Transitional Flow and its Application on a High Lift Multi-element Airfoil Configuration

Krumbein, A. (2003) On Modeling of Transitional Flow and its Application on a High Lift Multi-element Airfoil Configuration. 41st AIAA Aerospace Sciences Meeting and Exhibit, Reno (usa), 06.-09.01.2003.

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Abstract

In order to enhance its capabilities to handle flows with transition a RANS solver has been extended with regard to the modeling of transitional flow regions based on transition length models and the intermittency function. As the full coupling of the solver to an e*-method that predicts the locations of transition onset has not yet been completed the points of laminar separation are supposed to represent the transition locations in a first step. A method and an algorithm for detecting the laminar separation points are derived, the intermittency function and two transition length models are implemented and validated at a selected high lift multi-element test case. The paper focuses on the background of the implementation work and the testing of the functionalilites of the algorithms. Details of the implementation, which are consequences of an underlying transition prediction strategy are outlined. The testing is described and documented by a number of commented plots.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003, monograph_id=AIAA-Paper 2003-724,
Title:On Modeling of Transitional Flow and its Application on a High Lift Multi-element Airfoil Configuration
Authors:
AuthorsInstitution or Email of Authors
Krumbein, A.UNSPECIFIED
Date:2003
Status:Published
Keywords:Transition Prediction, RANS solvers, Transition Modeling, Transitional Flows, Transition Length, High Lift, Multi-element
Event Title:41st AIAA Aerospace Sciences Meeting and Exhibit, Reno (usa), 06.-09.01.2003
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts & Integration
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:09

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