Automatic Transition Prediction in Unsteady Airfoil Flows Using an Unstructured CFD Code

Krumbein, Andreas; Krimmelbein, Normann; Seyfert, Cornelia

doi:10.2514/6.2011-3365

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…The edge-streamline and line-in-flight cut approaches of the TAU transition prediction module have been applied to a large number of configurations, many of them of industrial relevance, and of different complexity, for example in [123][124][125][126][127][128]. Here, we show some examples which have already been published and a number of unpublished results.…”

Section: Application Of Streamline-based Approachesmentioning

confidence: 98%

“…The transition prediction module determines new values for all transition points of all transition lines. The application of the new values of the transition onset locations in the continued RANS computation is performed using a dynamic under-relaxation scheme [116] that damps oscillations in the convergence history of the transition onset locations and ensures a smooth development until a converged state has been reached.…”

Section: Transition Prediction Using Streamline-based Approachesmentioning

confidence: 99%

See 1 more Smart Citation

Development and Application of Transition Prediction Techniques in an Unstructured CFD Code (Invited)

Krumbein

Krimmelbein

Grabe

et al. 2015

45th AIAA Fluid Dynamics Conference

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Section: Application Of Streamline-based Approachesmentioning

confidence: 98%

Section: Transition Prediction Using Streamline-based Approachesmentioning

confidence: 99%

Development and Application of Transition Prediction Techniques in an Unstructured CFD Code (Invited)

Krumbein

Krimmelbein

Grabe

et al. 2015

45th AIAA Fluid Dynamics Conference

Self Cite

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“…For the TAU-solver the automatic transition prediction tool implemented by Krumbein and Krimmelbein [27]- [28] is used with a laminar-boundary layer code and a linear stability code coupled with the flow solver. The transition prediction approach is based on the e N -method and since it is used for two-dimensional investigations it covers only the transition due to Tollmien-Schlichting (TS) instabilities.…”

Section: Transition Predictionmentioning

confidence: 99%

A CFD Benchmark for Flow Separation Control Application

Ciobaca¹,

Dandois²,

Bieler³

2014

International Journal of Flow Control

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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.

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A transition prediction method for flow over airfoils based on high-order dynamic mode decomposition

Han

Nie

et al. 2019

Chinese Journal of Aeronautics

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Automatic Transition Prediction in Unsteady Airfoil Flows Using an Unstructured CFD Code

Cited by 6 publications

References 17 publications

Development and Application of Transition Prediction Techniques in an Unstructured CFD Code (Invited)

Development and Application of Transition Prediction Techniques in an Unstructured CFD Code (Invited)

A CFD Benchmark for Flow Separation Control Application

A transition prediction method for flow over airfoils based on high-order dynamic mode decomposition

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