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Numerical Investigation of Tangential Blowing at the Rudder of a Vertical Tailplane Airfoil

Kröhnert, Anna (2014) Numerical Investigation of Tangential Blowing at the Rudder of a Vertical Tailplane Airfoil. In: 32nd AIAA Applied Aerodynamics Conference. 32nd AIAA Applied Aerodynamics Conference, AIAA Aviation and Aeronautics Forum and Exposition 2014, 16.-20. Juni 2014, Atlanta, Georgia, USA.

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Abstract

A numerical 2D investigation of a vertical tailplane airfoil using active flow control with tangential blowing over the rudder shoulder is conducted. The intention of the flow control application is to increase the maximum lift or side force which can be created by the vertical tailplane at critical conditions like the one-engine-inoperative failure case. On the highly deflected rudder a large separation can be found without blowing. With tangential blowing it is shown that fully attached flow can be achieved. The flow simulations performed are based on the Reynolds-averaged Navier-Stokes equations. The parameters momentum coeffi�cient, slot height and angle of attack of the oncoming flow are varied to assess sensitivities and the influence on the results. Furthermore, the influence of a geometric detail in the vicinity of the slot exit is investigated, namely the existence or omission of a step behind the slot exit. Finally, the influence of the turbulence model is studied where besides the Spalart and Allmaras turbulence model with rotational and curvature correction (SARC) also the SAO and RSM turbulence models are applied.

Item URL in elib:https://elib.dlr.de/91246/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Investigation of Tangential Blowing at the Rudder of a Vertical Tailplane Airfoil
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kröhnert, Annaanna.kroehnert (at) dlr.deUNSPECIFIED
Date:June 2014
Journal or Publication Title:32nd AIAA Applied Aerodynamics Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Vertical tailplane, AFC, tangential blowing, CFD
Event Title:32nd AIAA Applied Aerodynamics Conference, AIAA Aviation and Aeronautics Forum and Exposition 2014
Event Location:Atlanta, Georgia, USA
Event Type:international Conference
Event Dates:16.-20. Juni 2014
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Kröhnert, Anna
Deposited On:21 Oct 2014 16:04
Last Modified:21 Oct 2014 16:04

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