Advanced SearchSearch Tips
Wake Characteristics of Vane-Type Vortex Generators in a Flat Plate Laminar Boundary Layer
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Wake Characteristics of Vane-Type Vortex Generators in a Flat Plate Laminar Boundary Layer
Shim, HoJoon; Jo, Young-Hee; Chang, Kyoungsik; Kwon, Ki-Jung; Park, Seung-O;
  PDF(new window)
Experimental and numerical investigations were conducted to identify the wake characteristics downstream of two vane-type vortex generators over laminar flat plate boundary layer. Experimental study was carried out by using the stereoscopic particle image velocimetry. To describe the flow field around the vortex generator in detail, numerical study was performed. We considered two different planform shapes of vortex generator: triangular and rectangular shape. The height of the generator was chosen to be about the boundary layer thickness at the position of its installation. Two different lengths of the generator were chosen: two and five times the height. Wake measurements were carried out at three angles of attack for each configuration. Wake characteristics for each case such as overall vortical structure, vorticity distribution, and location of vortex center with downstream distance were obtained from the PIV data. Wake characteristics, as expected, were found to vary strongly with the geometry and angle of attack so that no general tendency could be deduced. Causes of this irregular tendency were explained by using the results of the numerical simulation.
Vortex Generator;Wake Characteristics;Laminar Boundary Layer;Stereoscopic-PIV;
 Cited by
Lin, J. C., "Review of research on low-profile vortex generators to control boundary-layer separation", Progress in Aerospace Sciences, Vol. 38, Issues 4-5, 2002, pp. 389-420. crossref(new window)

Taylor, H. D., "The elimination of diffuser separation by vortex generators", United Aircraft Corporation Report No. R-4012-3, 1947

Lin, J. C. and Howard, F. G., "Turbulent flow separation control through passive techniques", AIAA 2nd Shear Flow Conference, Tempe, AZ, 1989.

Yao, C. S., Lin, J. C. and Allan, B. G., "Flow-filed measurement of device-induced embedded streamwise vortex on a flat plate", 1st AIAA Flow Control Conference, St. Louis, MO, 2002.

Ashill, P. R., Fulker, J. L. and Hackett, K. C., "Research at DERA on sub boundary layer vortex generators (SBVGs)", 39th Aerospace Science Meeting and Exhibit, Reno, NV, 2001.

Jenkins, L., Gorton, S. A. and Anders, S., "Flow control device evaluation for an internal flow with an adverse pressure gradient", 40th AIAA Aerospace Sciences Meeting & Exhibit, Reno, NV, 2002.

Allan, B. G., Yao, C. S. and Lin, J. C., "Numerical simulations of vortex generator vanes and jets on a flat plate", 1st AIAA Flow Control Conference, St. Louis, MO, 2002.

Torii, K. and Yanagihara, J. I., "The effects of longitudinal vortices on heat transfer of laminar boundary layers", JSME International Journal Series II, Vol. 32, No. 3, 1989, pp. 395-402.

Yanagihara, J. I. and Torii, K., "Enhancement of laminar boundary layer heat transfer by a vortex generator", JSME International Journal Series II, Vol. 35, No. 3, 1992, pp. 400-4405.

Angele, K. P. and Muhammad-Klingmann, B., "The effect of streamwise vortices on the turbulence structure of a separating boundary layer", European Journal of Mechanics-B/Fluids, Vol. 24, Issue 5, 2005, pp. 539-554. crossref(new window)

Lin, J. C., Robinson, S. K., McGhee, R. J. and Valarezo, W. O., "Separation control on high-lift airfoils via microvortex generators", Journal of Aircraft, Vol. 31, No. 6, 1994, pp. 1317-1323. crossref(new window)

Lin, J. C., Selby, G. V. and Howard, F. G., "Exploratory study of vortex-generating devices for turbulent flow separation control", 29th Aerospace Sciences Meeting, Reno, NV, 1991.

Godard, G. and Stanislas, M., "Control of a decelerating boundary layer. Part 1: Optimization of passive vortex generators", Aerospace Science Technology, Vol. 10, Issue 3, 2006, pp. 181-191. crossref(new window)

Velte, C. M., Hansen, M. O. L. and Cavar, D., "Flow analysis of vortex generators on wing sections by stereoscopic particle image velocimetry measurements", Environmental Research Letters, Vol. 3, No. 1, 2008.

Stillfried, F. V., Wallin, S. and Johansson, A. V., "Evaluation of a vortex generator model in adverse pressure gradient boundary layers", AIAA Journal, Vol. 49, No. 5, 2011, pp. 982-993. crossref(new window)

Kerho, M., Hutcherson, S., Blackwelder, R. F. and Liebeck, R. H., "Vortex generators used to control laminar separation bubbles", Journal of Aircraft, Vol. 30, No. 3, 1993, pp. 315-319. crossref(new window)

Velte, C. M., Okulov, V. L. and Naumov, I. V., "Regimes of flow past a vortex generator", Technical Physics Letters, Vol. 38, Issue 4, 2012, pp. 379-382. crossref(new window)

Yanagihara, J. I, and Torii, K., "Heat transfer augmentation by longitudinal vortices rows", Experimental heat transfer, Fluid mechanics and Thermodynamics, 1993, pp. 560-567.

Narasimha, R. and Prasad, S. N., "Leading edge shape for flat plate boundary layer studies", Experiments in Fluids, Vol. 17, Issue 5, 1994, pp. 358-360. crossref(new window)

Kwon, K. J., "Experimental study on aerodynamic and flow field characteristics of elliptic airfoils", Dissertation, Korea Advanced Institute of Science and Technology, 2006.

Prasad, A. K., "Stereoscopic particle image velocimetry", Experiments in Fluids, Vol. 29, Issue 2, 2000, pp. 103-116. crossref(new window)

PIVview 3C, PIVTEC, Gottingen, Germany; software available at

Uncertainty analysis particle image velocimetry. ITTC-Recommended Procedures and Guidelines, 2008.

Assessment of experimental uncertainty with application of wind tunnel testing. AIAA Standard S-071A-1999

Fluent 15.0, ANSYS, Pennsylvania, United States; software available at

Menter, F. R., Lantry, R. B., Likki, S. R., Suzenn, Y. B., Huang, P. G. and Volker, S., "A correlation-based transition model using local variables-Part I: Model formulation", Journal of Turbomachinery, Vol. 128, Issue 3, 2004, pp. 413-422.

Jiang, M., Machiraju, R. and Thompson, A., Detection and visualization of vortices, Visualization Handbook, Academic Press, 2004.

Strawn, R. C., Kenwright, D. N. and Ahmad, J., "Computer visualization of vortex wake systems", AIAA Journal, Vol. 37, No. 4, 1999, pp. 511-512. crossref(new window)

Gortz, S., "Realistic simulations of delta wing aerodynamics using novel CFD methods", Dissertation, Royal Institute of Technology, 2005.

Lam, K. M. and Wei, C. T., "Numerical simulation of vortex shedding from an inclined flat plate", Engineering Applications of Computational Fluid Mechanics, Vol. 4, No. 4, 2010, pp. 569-579. crossref(new window)