Two-Dimensional Simulation of Detonation Wave Propagation in an Rotating Detonation Engine
Publish place: 16th international conference of Iranian Aerospace Society
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
View: 421
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
AEROSPACE16_144
تاریخ نمایه سازی: 13 شهریور 1396
Abstract:
Detonation engines are expected to be included in a number of aerospace thrusters in the future. Several types of detonation engines are currently under examination, including the rotating detonation engine. In this work, the feasibility study for design of a laboratory sample RDE which has an annular geometry with diameter of 76 mm and length of 101 mm has been performed. In this sample, hydrogen and standard air are separately injected into the combustion chamber of detonation engine. The injection of fuel and air flows are in the axial and radial directions, respectively. First, numerical studies are validated comparing the FLUENT results with the experimental ones. Then, the geometry and equivalence ratio of injection mixture are investigated parametrically. Considering the negligible variations of thermodynamics parameters in the radial direction of flow field and to reduce the computational costs, a 2D model is used for numerical simulations. Using three different equivalence ratio, it is found that detonation speed, pressure, and temperature behind detonation front, at the equivalence ratio of 1.2 is more than the equivalence ratio of 0.8. Also maximum detonation speed and pressure behind detonation is taken place in stoichiometric condition.
Keywords:
Rotating Detonation Engine - Rotating Detonation Combustion Modeling - Geometry Design of RDE - 2D simulation of RDE
Authors
Mohammad farahani
Sharif University of Technology, Aerospace Engineering Department, Tehran
Mohammad badrgoltapeh
Sharif University of Technology, Aerospace Engineering Department, Tehran