The aim of the present work is to demonstrate the feasibility of a porous pressure-sensitive paint (PSP) for time-resolved surface pressure measurements in unsteady flows. The porous PSP was composed of bathophenanthroline ruthenium(II) complex, Ru(Ph/sub 2/-phen), and a silica-gel thin-layer chromatography (TLC) aluminum plate. The dynamic response of the porous PSP was characterized by applying it to rapid pressure changes generated by a shock wave and a pulse-jet. The porous PSP was then applied to the transient starting process of flow in a two-dimensional Laval nozzle with a fast-framing complementary metal oxide semiconductor (CMOS) camera. It has been shown that the present imaging system can well capture a rapid flow evolution on the order of kilohertz such as shock wave motion in the nozzle during its starting process.


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    Title :

    Surface pressure distribution imaging at frame rates over 1 kHz using porous pressure-sensitive paint


    Contributors:
    Sakamura, Y. (author) / Suzuki, T. (author) / Matsumoto, M. (author)


    Publication date :

    2003-01-01


    Size :

    647203 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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