Water Flow Visualisation of Ramrocket Combustion Chamber,
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRAN CE)
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Flow within the combustion chamber of a ramrocket was investigated using water flow visualization with air bubbles as tracers. Configurations with four axisymmetric intakes entering the combustion chamber at either 45 deg or 90 deg were considered. A region of stable recirculatory flow was identified at the head end of the combustion chamber and estimates were obtained of the amount flowing through the recirculation region. Based on this information fuel jets have been designed which it is believed will aid ignition, secure flame stability and improve combustion efficiency. The interaction between fuel jets and the recirculatory air flow has been tentatively investigated on flow visualization tests using jets of coloured water.
- Combustion and Ignition
- Fluid Mechanics