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A CFD Benchmark for Flow Separation Control Application

Ciobaca, Vlad and Dandois, Julien and Bieler, Heribert (2014) A CFD Benchmark for Flow Separation Control Application. International Journal of Flow Control, 6 (3), pp. 67-81. Sage Publications. ISBN ISSN 1756-8250 ISSN 1756-8250

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Official URL: http://multi-science.metapress.com/content/121499

Abstract

This paper describes numerical studies conducted for one promising active flow control (AFC) technology for high-lift configurations, namely the pulsed blowing through slots. The selected configuration is a 2D high-lift airfoil, known as DLR-F15, and represents the state of the art for transonic turbulent airfoil for modern civil transport aircraft. The slot-actuators are applied on the suction side of the trailing edge flap to prevent local flow separation. The studies are addressed to evaluate the feasibility of unsteady RANS simulations to reproduce the trends discovered in experiments. Within the European framework of JTI-Clean Sky, numerical and experimental studies for low speed AFC are addressed. In this project, a computational study was performed at ONERA and DLR for verifying their standard approaches for AFC with available time-averaged experimental data and performing a direct comparison of computed flow unsteadiness and its implications. The results for moderate angles of attack with and without control show that the numerical predictions are in good agreement with the experiment and in between each other provided that the laminar to turbulent boundary layer transition on the flap is considered.

Item URL in elib:https://elib.dlr.de/92445/
Document Type:Article
Title:A CFD Benchmark for Flow Separation Control Application
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ciobaca, Vladvlad.ciobaca (at) dlr.deUNSPECIFIED
Dandois, Julienjulien.dandois (at) onera.frUNSPECIFIED
Bieler, Heribertheribert.bieler (at) airbus.comUNSPECIFIED
Date:September 2014
Journal or Publication Title:International Journal of Flow Control
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:6
Page Range:pp. 67-81
Publisher:Sage Publications
ISSN:1756-8250
ISBN:ISSN 1756-8250
Status:Published
Keywords:Active Flow Control, CFD, Validation, uRANS, pulsed blowing, ONERA, DLR
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: Ciobaca, Vlad
Deposited On:28 Nov 2014 15:44
Last Modified:08 Mar 2018 18:36

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