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The Effect of Gas Thermochemical Model on the Flowfield of Supersonic Rocket in Propulsive Flight  

최환석 (한국항공우주연구원)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.6, no.1, 2002 , pp. 12-20 More about this Journal
Abstract
An integrated analysis of kerosine/LOX based KSR-III rocket body/plume flowfield has been performed. The analysis has been executed employing three kind of gas thermo-chemical models including calorically perfect gas, multiple species chemically reacting gas, and chemically frozen gas models and their effect on rocket flowfield has been accessed to provide the most appropriate gas thermo-chemical model which meets a specific purpose of performing rocket body and plume analysis. The finite-rate chemically reacting flow solution exhibited higher temperature throughout the flowfield than other gas models due to the increased combustion gas temperature caused by the chemical reactions within the nozzle. All the reactions were dominated only in the shear layer and behind the barrel shock reflection region where the gas temperature is high and the effect of finite-rate chemical reactions on the flowfield was found to be minor. However, the present plume computation including finite-rate chemical reactions revealed major reactions occurring in the plume and their reaction mechanisms and as well.
Keywords
Supersonic Rocket; Plume Analysis; Atmosphere-Plume Interaction; Wavier-Stokes Equations; Gas Thermo-Chemical Model;
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