Open AccessЗависимость звукового удара от взаимного расположения тел в сверхзвуковом потоке
Author(s) -
А.В. Потапкин,
Д.Ю. Москвичев
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.06.49165.18071
Subject(s) - sonic boom , supersonic speed , mach number , mechanics , position (finance) , acoustics , boom , aerodynamics , physics , choked flow , aerospace engineering , geology , engineering , oceanography , finance , economics
Results of calculating the sonic boom generated in a supersonic air flow by two bodies (disk and slender body of revolution) are presented. The bodies are arranged one behind the other. The slender body is aerodynamically shaded by the disk. The free-stream Mach number is 2. The calculations are performed by a combined method of “phantom bodies.” By changing the disk position and its size, it is possible to reduce the sonic boom level. Based on the calculation results, the gas-dynamic factors affecting the sonic boom level are described.