Method of Shock Wave Overpressure Reconstruction
Y. Guo, Y. Han, L. Wang
National Key Laboratory of Electronic test Technology in North University of China, Taiyuan, Shanxi, 030051 China
Keywords: восстановление избыточного давления, оптимальная структура тестирующей системы, разбиение сетки на подобласти с ячейками разного масштаба, оптимальное расположение датчиков, обобщенное обратное преобразование, overpressure reconstruction, optimal design of the testing system, subregion and multiscale cell partition, optimal distribution of sensors, generalized inversion
Abstract
A method of shock wave overpressure reconstruction is presented, which allows overcoming the drawbacks of the previous approaches associated with the lack of shock wave velocity measurement points and the limitations of the empirical formula. An optimal design of the testing system is proposed. Based on the optimal system, the shock wave velocity field is inverted with the use of the generalized inversion theory, and the overpressure distribution is obtained. The inversion results are preferable to empirical results because the experimental data are confirmed in a limited area. Methods of overpressure computation and visualization are described.
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