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RISOn the Challenges of Integrating a Rotating Detonation Combustor With an Industrial Gas Turbine and Important Design Considerations for Row-1 Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In an effort to increase the efficiency and performance of gas turbine power cycles, pressure gain combustion (PGC) has gained significant interest. Since rotating detonation combustors (RDC) can provide a quasi-steady ...
The Effect of Swirl Number on Lean Blow Out Limits of Lean Direct Injection Combustors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This is the first study where a single variable sweep of SN is conducted to assess its impact on lean blowout limits (LBO) in a liquid-fueled lean direct injection (LDI) combustor. This study uses a scaled NASA SV-LDI ...
A Computationally Efficient Approach to Modeling Three-Dimensional Geometric Effects of Combustor Geometries in Rotating Detonation Engines Using Two-Dimensional Computational Fluid Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Current state-of-the-art gas turbine engines operate in deflagration mode of combustion. Integrating a rotating detonation combustor (RDC) successfully with a downstream turbine has the potential to enhance the ...
Influence of Mesh Parameters and Turbulence–Chemistry Interactions on Wave Mode Prediction in Rotating Detonation Engines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. The influence of spatial discretization, mesh refinement, and turbulence–chemistry interactions (TCI) on wave mode dynamics and heat release is studied by performing full-scale 3D nonpremixed reacting flow ...
Time Resolved Particle Image Velocimetry Measurements of Nonreacting Flow Field in a Swirl Stabilized Combustor Without and With Porous Inserts for Acoustic Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Combustion noise and thermoacoustic instabilities are of primary importance in highly critical applications such as rocket propulsion systems, power generation, and jet propulsion engines. Mechanisms for combustion ...
Thermoacoustic Instability Model With Porous Media: Linear Stability Analysis and the Impact of Porous Media
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Lean premixed (LPM) combustion systems are susceptible to thermoacoustic instability, which occurs when acoustic pressure oscillations are in phase with the unsteady heat release rates. Porous media has inherent acoustic ...
Performance Evaluation of Different Rotating Detonation Combustor Designs Using Simulations and Experiments
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rotating detonation engines (RDEs) present a potential avenue for enhancing the efficiency of gas turbine combustors through the utilization of a detonation-driven process. However, integrating an RDE with a downstream ...
Numerical Study of Counter-Rotating Wave Propagation in a Rotating Detonation Engine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. The phenomena driving counter-rotating wave (CRW) mode formation in rotating detonation engines (RDEs) are relatively unexplored in the literature. Therefore, a full-scale 3D nonpremixed reacting flow simulation ...
Swirler Effects on Passive Control of Combustion Noise and Instability in a Swirl Stabilized Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High strength porous inert media (PIM) placed in the reaction zone of a swirlstabilized leanpremixed combustor is a passive method of controlling combustion noise and instabilities. In this study, the effect of swirler ...
Investigation of Single Jet Combustor Near Lean Blowout Conditions Using Flamelet Generated Manifold Combustion Model and Detailed Chemistry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical simulation results of a singlejet premixed combustion system at atmospheric pressure are compared against comprehensive particle image velocimetry (PIV) flow measurements and Raman scattering temperature measurements ...