TY - JOUR N2 - The characteristics of the free gas jet, during its interaction with an upstream moving shock, were investigated experimentally. The initial strength of the shock remained constant and equal to M, = 1.34 whereas the Mach number of the free gas jet M, varied in a wide range of sub- and transonic values from M, = O up to M, = 1.4. It is shown that in the presence of the moving shock the jet characteristic becomes strongly modified. Outside the jet originates a cluster of pressure waves which moves upstream in jet surrounding. Spatial and frequency characteristics, as well as the number of pressure waves in the cluster, depend on the shock amplitude and the exit velocity of the free gas jet. L1 - http://journals.pan.pl/Content/125010/PDF/3_MECHANICAL_51_2004_4_Selerowicz_The_influence.pdf L2 - http://journals.pan.pl/Content/125010 PY - 2004 IS - No 4 EP - 489 KW - shock waves KW - free gas jets KW - interaction A1 - Selerowicz, Witold S. PB - Polish Academy of Sciences, Committee on Machine Building VL - vol. 51 DA - 13.11.2022 T1 - The influence of the upstream moving shock on the free gas jet characteristics SP - 471 UR - http://journals.pan.pl/dlibra/publication/edition/125010 T2 - Archive of Mechanical Engineering ER -