Direct initiation of detonation in hydrogen - air mixture by decomposition of low pressure domain without energy input

• Autorzy: Levin V.A. , Markov V.V. , Zhuravskaya T.A.
• Języki publikacji: EN

Abstrakty

EN

The problem of a direct initiation of spherical detonation in stoichiometric hydrogen - air mixture without any external energy input but only as a result of a decomposition of a low pressure ball domain is under consideration. The investigation of a converging flow with taking into account the detail mechanism of chemical reactions is done by a finite-difference method based on the Godunov's scheme with a moving difference grid and explicit separation of the leading shock and the contact surface. The calculations fulfilled under different values of low pressure ball radius and under different values of low pressure inside the ball shows that even for atmospheric pressure in the external space the self-sustained detonation wave may arise after reflection from the centre of symmetry. It is obtained that some minimal critical radius of the ball domain under which the detonation is realised exists for every fixed low pressure.

• Wydawca: Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archivum Combustionis
• Rocznik: 1998
• Tom: Vol. 18 nr 1-4
• Strony: 125--133
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Levin V.A.

autor

Markov V.V.

autor

Zhuravskaya T.A.

• Institute for Automation and Control Processes Far eastern Division Russian Academy of Sciences, Vladivostok, Russia