Application of novel pressure-sensitive paint formulations for the surface flow mapping of high-speed jets

Zare-Behtash, Hossein and Gongora-Orozco, Nalleli and Kontis, Konstantinos and Holder, Simon J. (2009) Application of novel pressure-sensitive paint formulations for the surface flow mapping of high-speed jets. Experimental Thermal and Fluid Science, 33 (5). pp. 852-864. ISSN 0894-1777. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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The principle of pressure-sensitive paints (PSPs) is based upon excitation of the luminophore molecules at a certain wavelength and the emission of this absorbed energy at a higher wavelength. By isolating these two wavelengths we insure that the results obtained are not affected by any background radiation. Various international research groups, such as: the Central Aero-Hydrodynamic Institute (Russia), the University of Washington, NASA Ames, Boeing and McDonnell Douglas (USA), have developed their PSP formulations and some are commercially available. Two paints, which have been developed in-house at the Aero-Physics Laboratory (APL) at the University of Manchester, are studied here. One formulation uses hydrochloric acid (PSP1-HCl) and the other acetone as the solvent (PSP2-Ace). The current study employs the well known schlieren photography technique together with the relatively new PSP method, with comparison to discrete measurements, to examine the flow through a two-dimensional air-ejector system and examines the efficacy of the PSP formulations in providing an accurate global pressure field of the aforementioned setup. Detailed analysis of the errors and drawbacks involved in PSP measurements along with possible solutions to overcome them are also presented. Fully expanded jet Mach numbers in the range of 0.52 <= M-j <= 1.36 were examined.

Item Type: Article
Additional information: Zare-Behtash, H. Gongora-Orozco, N. Kontis, K. Holder, S. J.
Subjects: Q Science
Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Depositing User: Simon Holder
Date Deposited: 28 Oct 2010 10:22
Last Modified: 12 Jun 2014 15:51
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