Study of spherical shock waves in a non-self-maintained discharge by the laser schlieren technique

Kochetov, I.V.; Mazalov, D.A.; Pal', A.F.; Filippov, A.V.

Авторы: Kochetov I.V., Mazalov D.A., Pal' A.F., Filippov A.V.
Журнал: Plasma Physics Reports
Том: 25
Номер: 5
Год издания: 1999
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 375
Последняя страница: 386
Аннотация: Results are presented from the study of spherical shock waves (SWs) in air and in a low-temperature plasma of a non-self-maintained discharge in carbon dioxide by using the laser schlieren technique. A new calibration procedure and a new method for calculating the signal obtained by this technique include (i) experimental determination of the frequency response and sensitivity of the schlieren gauge, (ii) reconstruction of the density jump at the SW front as a function of the radius of a spherical SW from the recorded times of the SW arrival for different propagation distances in air (the reconstruction is based on the results of a numerical solution of the problem of point explosion in a gas with taking into account the gas pressure ahead of the SW front and the asymptotic law of the SW propagation), and (iii) the partial-ray method for calculating the schlieren-system response to the passage of a spherical SW across the laser beam. This technique is used to reconstruct the values of the density jump at the front of a spherical SW interacting with the plasma of a non-self-maintained discharge in carbon dioxide (electronegative gas with dissociative electron attachment).
Добавил в систему: Паль Александр Фридрихович

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Study of spherical shock waves in a non-self-maintained discharge by the laser schlieren techniqueстатья