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    Development of a Sol-Gel Based Nanoporous Unsteady Pressure Sensitive Paint and Validation in the Large Transonic Onera S2MA Windtunnel

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    Michou, Yanick.; Deleglise, Bruno.; Lebrun, Frederic.; Scolan, Emmanuel.; Grivel, Aurélie.; Steiger, Rolf.; Pugin, Raphaël.; Merienne, Marie-Claire.; Le Sant, Yves.
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    Abstract
    A new unsteady Pressure Sensitive Paint based on a nanostructured sol-gel coating has been developped and tested on a steel model of a civil aircraft in the ONERA's S2MA transonic windtunnel. Two inserts were fitted in the model wing and coated with a sol-gel based nanostructured silica PSP and functionalized by soaking in a Ru(dpp)3 solution. A third insert was prepared with anodised-aluminum PSP for comparison. The test conditions were M = 0.875, PiO = 100 kPa and 185 kPa. Pressure sensitivity of the nanoporous PSP is lower than that of the AA-PSP, however its luminescence intensity is about live times higher than that of the AA-PSP, resulting in a favorable compromise.
    Publication Reference
    31st AIAA Aerodynamic Measurement Technology and Ground Testing Conference, Dallas TX
    Year
    2015
    URI
    https://yoda.csem.ch/handle/20.500.12839/51
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