Pressure-sensitive paint on a truncated cone in hypersonic flow at incidences

Yang, L., Erdem, E., Zare-Behtash, H. and Kontis, K. (2012) Pressure-sensitive paint on a truncated cone in hypersonic flow at incidences. International Journal of Heat and Fluid Flow, 37, pp. 9-21. (doi:10.1016/j.ijheatfluidflow.2012.05.004)

[img]
Preview
Text
84607.pdf - Accepted Version

1MB

Abstract

The flow over a truncated cone is a classical and fundamental problem for aerodynamic research due to its three-dimensional and complicated characteristics. The flow is made more complex when examining high angles of incidence. Recently these types of flows have drawn more attention for the purposes of drag reduction in supersonic/hypersonic flows. In the present study the flow over a truncated cone at various incidences was experimentally investigated in a Mach 5 flow with a unit Reynolds number of 13.5 × 106 m−1. The cone semi-apex angle is 15° and the truncation ratio (truncated length/cone length) is 0.5. The incidence of the model varied from −12° to 12° with 3° intervals relative to the freestream direction. The external flow around the truncated cone was visualised by colour Schlieren photography, while the surface flow pattern was revealed using the oil flow method. The surface pressure distribution was measured using the anodized aluminium pressure-sensitive paint (AA-PSP) technique. Both top and sideviews of the pressure distribution on the model surface were acquired at various incidences. AA-PSP showed high pressure sensitivity and captured the complicated flow structures which correlated well with the colour Schlieren and oil flow visualisation results.

Item Type:Articles (Editorial)
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kontis, Professor Konstantinos and Zare-Behtash, Dr Hossein
Authors: Yang, L., Erdem, E., Zare-Behtash, H., and Kontis, K.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:International Journal of Heat and Fluid Flow
Publisher:Elsevier
ISSN:0142-727X
ISSN (Online):1879-2278
Copyright Holders:Copyright © 2012 Elsevier
First Published:First published in International Journal of Heat and Fluid Flow 37:9-21
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
Related URLs:

University Staff: Request a correction | Enlighten Editors: Update this record