Abstract
A laminar boundary layer has a relatively low skin-friction drag coefficient (c f ) with respect to a turbulent one, and for increasing Reynolds number the difference in c f rapidly increases, and the difference can easily amount to an order of magnitude in many industrial applications. This explains why there is a tremendous interest in being able to delay transition to turbulence, particularly by means of a passive mechanism, which has the advantage of accomplishing the control without adding any extra energy into the system. Moreover, a passive, control does not have to rely on typically complicated sensitive electronics in sensor-actuator systems. Within the AFRODITE project [3] we now present the first experimental results where we are able to show that miniature vortex generators (MVGs) are really coveted devices in obtaining transition delay.
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Fransson, J.H.M., Shahinfar, S., Sattarzadeh, S.S., Talamelli, A. (2014). Transition to Turbulence Delay Using Miniature Vortex Generators – AFRODITE –. In: Talamelli, A., Oberlack, M., Peinke, J. (eds) Progress in Turbulence V. Springer Proceedings in Physics, vol 149. Springer, Cham. https://doi.org/10.1007/978-3-319-01860-7_12
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DOI: https://doi.org/10.1007/978-3-319-01860-7_12
Publisher Name: Springer, Cham
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