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Numerical solution of internal flow and determination of operating factors of open-end and converging-end tangential and swirl injectors
1 MSc Student, Mechanical Engineering Department, Shahid Rajaee Teacher Training University
Convergent-end and Open-end injectors are widely used in internal combustion engines. These types of pressurized swirl injectors include: tangential inputs, rotation chamber, converging section and output orifice. In this paper, simulation and comparison of fluid flow inside Open-end and Convergent-end injectors for spraying kerosene fuel under the same operating conditions has been performed using the fluid volume (VOF) method. The results of time-dependent (unsteady) simulations showed that the exit time of kerosene from the Open-end injector is 1.8 milliseconds and in the Convergent-end injector is 4 milliseconds. The results of time-independent (steady) simulations at different injection pressures showed that the Open-end injector is stable at 0.05 MPa injection pressure, while the convergent-end injector is stable at 0.3 MPa injection pressure. However, the exit rate of kerosene in the Open-end injector is far less than that of the convergence-end injector, which reduces the aerodynamic force applied to the fuel inlet layer of the injector and reduces the fuel atomization in the Open-end injector compared to the convergent-end injector.
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دوره 9، شماره 2 - شماره پیاپی 2
اصل مقاله 4.09 MB
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منصوری زاده, جواد, & میرمحمدی, علی. (1399). حل عددی جریان داخلی و تعیین عوامل عملکردی انژکتورهای پیچشی مماسی انتها-باز و انتها-همگرا. دانش و فناوری هوافضا, 9(2), 53-64.
جواد منصوری زاده; علی میرمحمدی. "حل عددی جریان داخلی و تعیین عوامل عملکردی انژکتورهای پیچشی مماسی انتها-باز و انتها-همگرا". دانش و فناوری هوافضا, 9, 2, 1399, 53-64.
منصوری زاده, جواد, میرمحمدی, علی. (1399). 'حل عددی جریان داخلی و تعیین عوامل عملکردی انژکتورهای پیچشی مماسی انتها-باز و انتها-همگرا', دانش و فناوری هوافضا, 9(2), pp. 53-64.
منصوری زاده, جواد, میرمحمدی, علی. حل عددی جریان داخلی و تعیین عوامل عملکردی انژکتورهای پیچشی مماسی انتها-باز و انتها-همگرا. دانش و فناوری هوافضا, 1399; 9(2): 53-64.