Abstract
This paper is associated with a video winner of a 2020 American Physical Society's Division of Fluid Dynamics (DFD) Gallery of Fluid Motion Award for work presented at the DFD Gallery of Fluid Motion. The original video is available online at the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2020.GFM.V0026.
Highlights
This paper is associated with a video winner of a 2020 American Physical Society’s Division of Fluid Dynamics (DFD) Gallery of Fluid Motion Award for work presented at the DFD Gallery of Fluid Motion
Combustion and flame stabilization at high supersonic flows is challenging mainly due to small residence times for fuel-oxidizer mixing and ignition
Direct fuel injection into the cavity has been found to be advantageous compared to passive injection strategies with regard to greater control of local stoichiometry and fuel residence times [3]; a theoretical understanding of turbulent mixing and combustion between the fuel jet and supersonic air stream has not yet been fully developed
Summary
This paper is associated with a video winner of a 2020 American Physical Society’s Division of Fluid Dynamics (DFD) Gallery of Fluid Motion Award for work presented at the DFD Gallery of Fluid Motion. Combustion and flame stabilization at high supersonic flows is challenging mainly due to small residence times for fuel-oxidizer mixing and ignition. They enable flow deceleration and recirculation, increasing the residence time for adequate mixing of fuel and for subsequent combustion.
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