title: Pressure-sensitive paint measurements of transient shock phenomena.
abstract: Measurements of the global pressure field created by shock wave diffraction have been captured optically using a porous pressure-sensitive paint. The pressure field created by a diffracting shock wave shows large increases and decreases in pressure and can be reasonably accurately captured using CFD. The substrate, a thin-layer chromatography (TLC) plate, has been dipped in a luminophore solution. TLC plates are readily available and easy to prepare. Illumination comes from two high-intensity broadband Xenon arc light sources with short-pass filters. The sample is imaged at 100 kHz using a Vision Research Phantom V710 in conjunction with a pair of long and short pass filters, creating a band. The PSP results are compared with numerical simulations of the flow using the commercial CFD package Fluent as part of ANSYS 13 for two Mach numbers.
authors.affiliation: Aero-Physics Laboratory, University of Manchester, Manchester, UK. mark.quinn-2@postgrad.manchester.ac.uk
authors.forename: Mark Kenneth
authors.initials: MK
authors.lastname: Quinn
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Kontis
references.citation: Sensors (Basel). 2010;10(11):9799-807
references.pmid: 22163440
references.citation: Sensors (Basel). 2010;10(7):6836-47
references.pmid: 22163579
references.citation: Sensors (Basel). 2011;11(12):11649-63
references.pmid: 22247685