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Accurate Numerical Flow Simulation of Hovering Rotors using different Transition Prediction Methods
Heister, C.C. and Raddatz, J. and Klein, A. (2010) Accurate Numerical Flow Simulation of Hovering Rotors using different Transition Prediction Methods. 36th ERF 2010, 06.-09.Sep., Paris.
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Abstract
In order to numerically determine the laminar-turbulent transition on hovering rotors, the applicability of three different prediction methods originating from fixed wing applications has been investigated. This includes the AHD method, used with approximated boundary layer data, and the Drela eN envelope method, using integral boundary layer parameters. Both methods are implemented in the structured flow solver FLOWer. Furthermore, a boundary layer / eN stability code coupled to the hybrid flow solver TAU was taken into account. One two-dimensional test case (Somers airfoil) and two three-dimensional hovering rotor test cases (ONERA 7A rotor and DLR Bo 105 flight test) serve to test and validate predicted transition and its influence on rotor performance.
| Document Type: | Conference or Workshop Item (Paper) | ||||||||
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| Title: | Accurate Numerical Flow Simulation of Hovering Rotors using different Transition Prediction Methods | ||||||||
| Authors: |
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| Date: | September 2010 | ||||||||
| Status: | Published | ||||||||
| Keywords: | Transition, Rotor, Hover, Bo 105, 7A, AHD, eN Drela, eN, FLOWer, TAU | ||||||||
| Event Title: | 36th ERF 2010 | ||||||||
| Event Location: | Paris | ||||||||
| Event Type: | international Conference | ||||||||
| Event Dates: | 06.-09.Sep. | ||||||||
| Organizer: | ONERA | ||||||||
| HGF - Research field: | UNSPECIFIED | ||||||||
| HGF - Program: | UNSPECIFIED | ||||||||
| HGF - Program Themes: | UNSPECIFIED | ||||||||
| DLR - Research area: | UNSPECIFIED | ||||||||
| DLR - Program: | UNSPECIFIED | ||||||||
| DLR - Research theme (Project): | ["eprint_fieldopt_dlr_project_search_L000" not defined] | ||||||||
| Location: | Köln-Porz , Braunschweig , Göttingen | ||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology Institute of Aerodynamics and Flow Technology > CASE Institute of Aerodynamics and Flow Technology > Configuration Design | ||||||||
| Deposited By: | Christoph Heister | ||||||||
| Deposited On: | 25 Oct 2010 14:12 | ||||||||
| Last Modified: | 06 Dec 2012 15:59 |
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- Accurate Numerical Flow Simulation of Hovering Rotors using different Transition Prediction Methods. (deposited 25 Oct 2010 14:12) [Currently Displayed]
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