مدل‌سازی شبه یک‌بعدی بالستیک داخلی راکت سوخت جامد با در نظر گرفتن مدل سوزش فرسایشی سادرهلم

Razmjooei, Mohammad; ommi, Fatollah; shahbazi, mohammad

Volume 13, Issue 3 (9-2018) مواد پرانرژی 2018, 13(3): 197-208 | Back to browse issues page

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Razmjooei M, ommi F, shahbazi M. مدل‌سازی شبه یک‌بعدی بالستیک داخلی راکت سوخت جامد با در نظر گرفتن مدل سوزش فرسایشی سادرهلم. مواد پرانرژی 2018; 13 (3) :197-208
URL: http://isaem.ir/article-1-1155-en.html

مدل‌سازی شبه یک‌بعدی بالستیک داخلی راکت سوخت جامد با در نظر گرفتن مدل سوزش فرسایشی سادرهلم

Mohammad Razmjooei

, Fatollah Ommi ^*

, Mohammad Shahbazi

, Fommi@modares.ac.ir

Abstract: (2834 Views)

In this study, different flow analysis models in solid rocket motor are introduced. Amongst these models, some are not capable of predicting the effects of significant phenomena such as erosive burning and longitudinal acceleration. In order to consider these effects on the internal ballistic, a quasi-one-dimensional model was developed which employs generalized flow equations. A non-viscous and incompressible quasi-one-dimensional flow with friction, mass injection and flow cross-section variation were taken into account in the governing equations. Then, assuming quasi unsteady flow and considering pressure drop and variation of nozzle throat diameter, and also neglecting the heat transfer in the walls, the governing equations were integrated along the engine length at each time increment. Finally, the flow characteristics inside the engine including the distribution of pressure, temperature and Mach number along the engine as well as functional characteristics of the engine such as chamber pressure during the burning process were determined as a function of time. Erosive burning effects on the burning rate are of great importance at various conditions. Thus, the results of the model were compared with the experimental data of Saderholm model.

Keywords: Rocket Solid Propellant, Internal Ballistic, Quasi-One-Dimensional, Saderholm Model, Erosive Burning, Pressure Chamber

Full-Text [PDF 797 kb] (402 Downloads)

Type of Study: Research | Subject: مدلسازی
Published: 2019/09/17