STUDY OF FUEL-OXIDISER MIXTURE AND DETONATION WAVE DYNAMICS FOR ROTATION DETONATION ENGINE
STUDY OF FUEL-OXIDISER MIXTURE AND DETONATION WAVE DYNAMICS FOR ROTATION DETONATION ENGINE
Embedded Files
This research aims to investigate the underlying mechanisms governing detonation wave behaviour by high fidelity numerical simulation to begin with and use the data towards a 3d detonation wave model. The effect of chamber geometry, inlet conditions and boundary layer on wave propagation and stability will be the focus of the research. Gaining insight into detonation wave dynamics is crucial for achieving stable, consistent detonation wave and maximising the pressure gain benefits of the RDE. With the focus on these critical topics related to the rotating detonation engine, this research will contribute to the advancement of RDE technology for future propulsion systems.
This research aims to investigate the underlying mechanisms governing detonation wave behaviour by high fidelity numerical simulation to begin with and use the data towards a 3d detonation wave model. The effect of chamber geometry, inlet conditions and boundary layer on wave propagation and stability will be the focus of the research. Gaining insight into detonation wave dynamics is crucial for achieving stable, consistent detonation wave and maximising the pressure gain benefits of the RDE. With the focus on these critical topics related to the rotating detonation engine, this research will contribute to the advancement of RDE technology for future propulsion systems.
Conclusions:
The main conclusions of the research are oriented towards studying the fundamental parameters of the various phases of detonation wave engine operation. Some of the conclusions are as follows:
• Detonation cell size is a critical factor in scalability or miniaturization of the RDE systems. This is affected by the fuel- oxidizer selection which becomes key factor in performance enhancement.
• The initiation energy for a stable combustion directly relates to the detonation cel size.
• CJ velocity point is the threshold to maintain a stable combustion and performance of the rotating detonation engine.
Figure: Comparative Properties of detonation and deflagration
Figure: Detonation cycle comparison with Brayton cycle
Figure: Detonation Engine Geometry and various stages of operation
Figure: Detonation cell size theory
Figure: Fuel-Oxidizer Mixtures
Figure: Detonation cell size in mm for different Fuel- Oxidizer Mixture
Figure: Impact of Fuel-Oxidizer Mixture selection on cell width and detonation cell size
Figure: Conditions for Injection in to the detonation chamber
Figure: CJ analysis curve
Figure:Different Injection Style for the RDE
Figure: Geometry Parameters of the RDE
Figure: Pressure, Temperature and Nitrogen Concentration for the geometric analysis
Figure: Methane-Air Detonation dell size at different ignition temperature in different nitrogen concentration
Figure: Initiation Energy VS Detonation cell size and Reaction rate VS Temperature
Figure: Injection velocity Vs Temperature at different values of specific heat
Figure: Critical Pressure VS Specific heat ratio
Geometry Parameters Analysis
Figure: Reactant Fill Height VS detonation cell size
Figure: Critical Diameter VS Detonation cell size
Figure: Chamber Length VS reactant fill height
Detonation Wave Mach Number at different Temperature VS Different Pressures
Figure: Mach Number analysis for Fuel rich mixture ( stoichiometric ratio: 1.2)
Figure: Mach Number analysis for Stoichiometric mixture
Figure: Mach Number analysis for 0.8 lean mixture
Figure: Acoustic frequency vs diameter of the detonation chamber
Page updated
Google Sites
Report abuse