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Simulation of far propagation of waves from an explosion based on the solution of the Burgers-type equation on an acoustic wave beam and comparison with experimentтезисы доклада Тезисы
- Авторы: Kshevetskii S.P., Kulichkov S.N., Chunchuzov I., Zakirov M., Golikova E.
- Сборник: International symposium «Atmospheric Radiation and Dynamics» (ISARD-23) Theses. SPb
- Тезисы
- Год издания: 2023
- Первая страница: 223
- Последняя страница: 224
- Аннотация: The theory and and example of solution of the problem of long-range propagation of pulsed acoustic signals in the atmosphere is presented, taking into account nonlinear and dissipative effects, based on a Burgers-type nonlinear equation written on an acoustic wave beam. For a given azimuth and starting angle, according to the wave ray theory, the wave beam along which the acoustic waves propagate is calculated, and the variable coefficients of the nonlinear Burgers type on the wave beam are calculated. Then a nonlinear Burgers-type equation is solved. The results of calculating the change in the shape of the wave profile during the propagation of acoustic pulses from the explosion are presented. Under the atmospheric conditions at the time of the explosion, the stratospheric and thermospheric reflection of the acoustic wave is realized. After wave reflection, the wave reaches the Earth's surface at a distance of about 300 km from the source. Waves are experimentally recorded at several observation points. The calculation results agree satisfactorily with experimental observations.
- Добавил в систему: Закиров Марат Нафисович