Experimental and Numerical Analysis to Optimize an Existing Rotating Detonation Combustion Chamber

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Fahim, Mohammad | 2020

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 55642 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Farshchi, Mohammad
Abstract:
By creating constant volume combustion, the rotating detonation chamber increases efficiency compared to conventional constant pressure chambers. The RDC is smaller and mechanically more straightforward than the other detonation chambers, such as the pulse chamber. In the current research, an RDC with an outer diameter of 76 mm and an inner diameter of 64 mm, using hydrogen and air as fuel and oxidizer, has been successfully tested and data collected in the laboratory. Data acquisition has been made by high-frequency and pressure measurement facilities. In the following, the chamber has been optimized and improved by applying parametric studies (equivalence ratio, mass flow rate, channel width, slot height, etc.). Also, considering the complex nature of the detonation, the stability of RDC operation has been investigated by presenting diagrams and relationships. Understanding the structure of the rotating detonation wave and the scientific explanation of all these phenomena are the main goals of this research.
Keywords:
Combustion Chamber ; Supersonic Combustion ; Detonation Combustion ; Normal Shock Wave ; Rotating Detonation Combustion Modeling ; Rotating Detonation Engine (RDE)

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