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Effect of Stagnation Temperature on

時間:2023-04-27 18:57:26 航空航天論文 我要投稿
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Effect of Stagnation Temperature on the Supersonic Two Dimensional Plug Nozzle Conception. Application for Air

When the stagnation temperature of a perfect gas increases, the specific heats and their ratio do not remain constant any more and start to vary with this temperature. The gas remains perfect, its state equation remains always valid, except it will name in more calorically imperfect gas or gas at High Temperature. The goal of this research is to trace the profiles of the supersonic plug nozzle when this stagnation temperature is taken into account, lower than the threshold of dissociation of the molecules, by using the new formula of the Prandtl Meyer function, and to have for each exit Mach number, several nozzles shapes by changing the value of this temperature. A study on the error given by the PG (perfect gas) model compared to our model at high temperature is presented. The comparison is made with the case of a calorically perfect gas aiming to give a limit of application of this model. The application is for the air.

作 者: Toufik Zebbiche ZineEddine Youbi   作者單位: Department of Aeronautics, Faculty of Sciences of Engineer, University SAAD Dahleb of Blida,B.P. 270 Ouled Yaich, 09470 Blida, Algeria  刊 名: 中國航空學報(英文版)  ISTIC 英文刊名: CHINESE JOURNAL OF AERONAUTICS  年,卷(期): 2007 20(1)  分類號: V2  關(guān)鍵詞: supersonic flow   plug nozzle   calorically imperfect gas   interpolation   Prandtl Meyer function   stretching function   Simpsonquadrature   supersonic parameters   conception  

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