Fundamental Studies of Vortices Induced by a Vortex-Generator for Automotive Applications

Asiful Islam; Graham Doig

doi:10.4028/www.scientific.net/AMM.553.211

Paper Titles

A Numerical Solution Based on the Fokker-Planck Equation for Dilute Polymer Solutions Using High Order RBF Methods
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Comparison of Semi-Implicit and Explicit Finite Difference Algorithms on Highly Parallel Processing Architectures
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Investigation into the Existence of Cavitation within Haemodialysis Needles
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The Aerodynamics of a Cornering Inverted Wing in Ground Effect
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Fundamental Studies of Vortices Induced by a Vortex-Generator for Automotive Applications
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Application of Kriging to Motorsport Aerodynamic Analysis
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Computational Simulation of an Altitude Adaptive Nozzle Concept
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Explaining Ground Effect Aerodynamics via a Real-Life Reference Frame
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Risk Forecast of In-Stent Restenosis by CFD Method
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 553Fundamental Studies of Vortices Induced by a...

Fundamental Studies of Vortices Induced by a Vortex-Generator for Automotive Applications

Abstract:

For automotive applications, passive flow control devices can be used to reduce, delay or prevent flow separation. This study explores the nature of vortex generation and behaviour, numerically and experimentally, for a simple geometry at a Reynolds Number (Re_x) of 5×105 and 1.945×106. The setup comprised a triangular vane vortex-generator mounted on a shallow ramp referenced from literature. Flow over the isolated ramp was validated with past experimental particle-image-velocimetry (PIV) data, which also highlighted the relative performance of various turbulence models. A parametric study was undertaken with the vane orientation defined by an angle-of-attack (β) and stream-wise location (x_edge/x_VG). These results revealed relationships between geometric parameters of the vortex generator, as well as the influence of the boundary layer thickness (h_VG/δ), on the spatial trajectory of induced vortices.

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Periodical:

Applied Mechanics and Materials (Volume 553)

Pages:

211-216

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.553.211

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Online since:

May 2014

Authors:

Asiful Islam*, Graham Doig

Keywords:

Automotive Aerodynamics, Boundary Layer, Core Drift, Separation, Vane-Type, Vortex-Generator

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* - Corresponding Author

References

[1] C. C. Beves, An Investigation into the use of low aspect ratio spherical wells to reduce the flow separation on an inverted wing in ground effect, The University Of New South Wales, Sydney, Australia, (2009).

Google Scholar

[2] C. M. Velte, Characterisation of Vortex Generator Induced Flow, Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark, July, (2009).

Google Scholar

[3] H. K. Versteeg and W. Malalasekera, An Introduction to Computational Fluid Dynamics - The Finite Volume Method 2nd Edition, Essex: Pearson - Prentice Hall, (2007).

Google Scholar

[4] P. J. Roache, Perspective: A Method for Uniform Reporting of Grid Refinement Studies, Journal of Fluids Engineering , vol. 116, pp.405-413, September, (1994).

DOI: 10.1115/1.2910291

Google Scholar

[6] F. R. Menter, M. Kuntz and R. Langtry, Ten Years of Industrial Experience with the SST Turbulence Model, in Turbulence, Mass and Heat Transfer IV, Antalya, Turkey, 12-17 October (2003).

Google Scholar

[7] C. S. Yao, J. C. Lin and B. G. Allan, Flow-Field Measurement of Device-Induced Embedded Streamwise Vortex on a Flat Plate, in 1st AIAA Flow Control Conference, St. Louis, MO, 24-27 June, (2002).

DOI: 10.2514/6.2002-3162

Google Scholar

[8] R. L. Simpson, Aspects of turbulent boundary-layer separation, Progress in Aerospace Sciences, vol. 32, no. 5, pp.457-521, (1996).

DOI: 10.1016/0376-0421(95)00012-7

Google Scholar