The influence of nozzle diameters on the interaction characteristic of combustion-gas jets and liquid
| Autor: | Yong-gang Yu, Jin-ming Xie, Xiao-chun Xue |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Field (physics)
Bulk-loaded propellant Nozzle Computational Mechanics Mechanical engineering 02 engineering and technology Combustion 01 natural sciences Stability (probability) 010305 fluids & plasmas Physics::Fluid Dynamics 0203 mechanical engineering Jet shape 0103 physical sciences Fluid mechanics Propellant Combustion-gases Jet (fluid) Turbulent mixing Chemistry Mechanical Engineering Taylor cavities Metals and Alloys Mechanics 020303 mechanical engineering & transports Military Science Ceramics and Composites |
| Zdroj: | Defence Technology, Vol 13, Iss 4, Pp 257-262 (2017) |
| ISSN: | 2214-9147 |
| Popis: | To investigate the controlling method of interior ballistic stability of bulk-loaded propellant guns, the combustion-gas generator and cylindrical stepped-wall chamber are designed aiming at the injection processes of combustion-gases in liquid. The expansion courses of Taylor cavities and the turbulent mixing characteristic of gas–liquid are recorded by means of high speed photographic system. Based on the experiment, three-dimensional unsteady model on the interaction of gas and liquid is established to simulate expansion characteristics of twin combustion-gas jets in liquid under different nozzle diameters. The distribution regularities of characteristic parameter in jet field are obtained and analyzed. The results show the pressure, velocity and temperature distributions under different nozzle diameters are basically the same at the initial time. As time goes on, these characteristic parameters under different nozzle diameters have large differences. |
| Databáze: | OpenAIRE |
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