Optimization of measurement plate geometry for the use of luminescent pressure transducers in sonic boom studies
T.A. Gimon, S.V. Lukashevich, M.A. Morozova
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences (ITAM SB RAS), Russia, Novosibirsk
Keywords: numerical modeling, flow uniformity, measurement plate, luminescent pressure transducers, sonic boom
Abstract
As part of efforts to incorporate luminescent pressure transducers (LPTs) into the suite of experimental diagnostic methods, numerical modeling of the flow within the gas-dynamic duct of a wind tunnel was conducted, specifically addressing the analysis of the sonic boom near-field. Expected pressure levels generated by a test model were determined for the surfaces of both flat and curved measurement plates, which serve as substrates for the LPT coating. It was demonstrated that, compared to a flat plate, a curved plate provides a larger measurement area; however, the flat plate yields lower measurement uncertainty.
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