Open AccessЗвуковой удар от тонкого тела и локальных областей нагрева сверхзвукового набегающего потока
Author(s) -
А.В. Потапкин,
Д.Ю. Москвичев
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.04.50618.248-20
Subject(s) - sonic boom , supersonic speed , boom , mach number , flow (mathematics) , mechanics , choked flow , acoustics , transonic , physics , meteorology , geology , aerodynamics , oceanography
The problem of a sonic boom generated by a slender body and local regions of supersonic flow heating is solved numerically. The free-stream Mach number of the air flow is 2. The calculations are performed by a combined method of phantom bodies. The results show that local heating of the incoming flow can ensure sonic boom mitigation. The sonic boom level depends on the number of local regions of incoming flow heating. One region of flow heating can reduce the sonic boom by 20% as compared to the sonic boom level in the cold flow. Moreover, consecutive heating of the incoming flow in two regions provides sonic boom reduction by more than 30%.