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소정수,도규성,장윤제,송승호,한정수,문희장,So, Jungsoo,Do, Gyusung,Jang, Yunje,Song, Seungho,Han, Jungsoo,Moon, Heejang 항공우주시스템공학회 2008 항공우주시스템공학회지 Vol.2 No.2
This paper describes the performance characteristics of flow and structure in the post-chamber and nozzle. Using the computational fluid dynamics (CFD) technique, the stress and compressible flow fields in the downstream of the post chamber and nozzle were numerically calculated. Besides, the stress characteristics at the wall of post-chamber and nozzle were investigated under different thickness (2mm, 5mm and 10mm) of the nozzle wall. The stress pattern demonstrates that the strength of nozzle wall having 10mm is safer than that of 5mm or 2mm according to von Mises stress irrespective to the pressure field