Detonation Combustion of Hydrogenin a Convergent-Divergent Nozzle with a Central Coaxial Cylinderстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 декабря 2014 г.
Аннотация:The feasibility of steady detonation combustion of a hydrogen-air mixture entering at a
supersonic velocity in an axisymmetric convergent-divergent nozzle with a central coaxial cylinder is
considered. The problem of the nozzle starting and the initiation of detonation combustion is numerically
solved with account for the interaction of the outflowing gas with the external supersonic flow.
The modeling is based on the gasdynamic Euler equations for an axisymmetric flow. The calculations
are carried out using the Godunov scheme on a fine fixed grid which allows one to study in detail the interaction
of an oblique shock wave formed in the diffuser with the nozzle axis. It is shown that a central
coaxial cylinder ensures the starting with the formation of supersonic flow throughout the entire nozzle
and stable detonation combustion of a stoichiometric hydrogen-air mixture in the divergent section of
the nozzle.