Recently, there has been increased interest in the performance, efficiency, and the fundamental aspects of plug nozzle flow fields mainly due to the X33 design efforts. Plug nozzles, either full length or truncated, adapt to the ambient conditions and provide higher efficiency than the conventional bell nozzles. This fact-finding study focuses on the prediction of the general flow characteristics of full length and truncated plug nozzles using the commercial code FLUENT. Emphasis is placed on comparing the computational results with the experimental data using a number of turbulence models. This would provide a preliminary assessment on the ability of FLUENT to accurately predict these 1 Member AIAA 2 Member AIAA AIAA paper 2002-511
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