# Quasi-steady State Simulation of Rotating Detonation Engine

• Niyasdeen, Mohammed ;
• Oh, Sejong ;
• Kim, Kui Soon ;
• Choi, Jeong-Yeol
• Accepted : 2015.12.10
• Published : 2015.12.30
• 39 10

#### Abstract

We performed a numerical simulation based on the two-dimensional (2-D) unsteady Euler's equation with a single-step Arrhenius reaction model in order to investigate the detonation wave front propagation of an Argon (Ar) diluted oxy-hydrogen mixture ($2H_2+O_2+12Ar$). This simulation operates in the detonation frame of reference. We examine the effect of grid size and the performance impact of integrated quantities such as mass flow. For a given set of baseline conditions, the minimal and maximum grid resolutions required to simulate the respective detonation waves and the detonation cell structures are determined. Tertiary shock wave behavior for various grids and pre-exponential factors are analyzed. We found that particle fluctuation can be weakened by controlling the mass flow going through the oblique shock waves.

#### Keywords

Rotating detonation engine (RDE);pulse detonation engine (PDE);oblique shock waves;numerical simulation

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#### Acknowledgement

Supported by : National Research Foundation of Korea (NRF)