Abstract
The receptivity of 3-D boundary layers to micron-sized, spanwise-periodic Discrete Roughness Elements (DREs) was studied. The DREs were applied to the leading edge of a 30-degree swept-wing at the wavelength of the most unstable disturbance. In this case, calibrated, multi-element hotfilm sensors were used to measure disturbance wall shear stress. The roughness height was varied from 0 to 50 microns. Thus, the disturbance-shear-stress amplitude variations were determined as a function of modulated DRE heights. The computational work was conducted parallel to the flight experiments. The complete viscous flowfield over the O-2 aircraft with the SWIFT model mounted on the port wing store pylon was successfully modeled and validated with the flight data. This highly accurate basic-state solution was incorporated into linear stability calculations and the wave growth associated with the crossflow instability was calculated.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Carpenter AL, Saric WS, Reed HL. AIAA Paper No. 2008-7335 (2008)
Saric WS, Carrillo RB, Reibert MS. AIAA 98-0781 (1998)
Saric WS, Reed HL, Banks DW. NATO-RTO-MP-AVT-111/RSM (2005)
Saric WS, Reed HL, White EB. Ann. Rev. Fluid Mech. 35:413–40 (2003)
Rhodes RG, Carpenter AL, Reed HL, Saric WS. AIAA 2008-7336 (2008)
Saric WS, Carpenter AL, Reed HL. AIAA 2008-3834 (2008)
White EB, Saric WS. AIAA 2000-0283 (2000)
Radeztzky RH, Reibert MS, Saric WS, Takagi S. AIAA 93 -0076 (1993)
Saric WS. 2007 Boundary-Layer Stability and Transition. Springer Handbook of Experimental Fluid Mechanics Springer-Verlag Berlin Heidelberg, Ed: Cameron Tropea, Alexander Yarin, John F. Foss. Chapter C.12, Section 12.3 pp. 886–96, 20
Bechert DW. AIAA J. 34(1):205–6
Radeztsky RH, Reibert MS, Takagi S. Proc. 3rd Intl Symp. on Thermal Anemometry (1993)
Sarma GR, Moes TR. Rev. Sci. Instruments 76 (2005)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer Science+Business Media B.V.
About this paper
Cite this paper
Carpenter, A.L., Saric, W.S., Reed, H.L. (2010). Roughness receptivity studies in a 3-D boundary layer – Flight tests and computations. In: Schlatter, P., Henningson, D. (eds) Seventh IUTAM Symposium on Laminar-Turbulent Transition. IUTAM Bookseries, vol 18. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3723-7_15
Download citation
DOI: https://doi.org/10.1007/978-90-481-3723-7_15
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-3722-0
Online ISBN: 978-90-481-3723-7
eBook Packages: EngineeringEngineering (R0)