alexa Pressure-sensitive paint measurements of transient shock phenomena.
Engineering

Engineering

Journal of Aeronautics & Aerospace Engineering

Author(s): Quinn MK, Kontis K

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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.
This article was published in Sensors (Basel) and referenced in Journal of Aeronautics & Aerospace Engineering

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