Two-Dimensional Simulation of Detonation Wave Propagation in an Rotating Detonation Engine

سال انتشار: 1395
محل انتشار: شانزدهمین کنفرانس بین المللی انجمن هوافضای ایران
کد COI اختصاصی: AEROSPACE16_144
زبان مقاله: انگلیسی
تعداد مشاهده: 454

نویسندگان

Sharif University of Technology, Aerospace Engineering Department, Tehran

چکیده

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.

کلیدواژه ها

Rotating Detonation Engine - Rotating Detonation Combustion Modeling - Geometry Design of RDE - 2D simulation of RDE

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.