5 papers
Receptivity and Biorthogonal Decomposition in a Reacting Temporal Mixing Layer
Sriram P. Kalathoor, Joseph C. Oefelein
We examine receptivity and biorthogonal decomposition in a reacting temporal mixing layer using direct and adjoint eigenmodes of a finite-thickness compressible linearized operator…
Planar Lagrangian transport and scalar-gradient organization in a turbulent reacting shear layer
Sriram P. Kalathoor, Joseph C. Oefelein
We analyze planar Lagrangian transport and scalar-gradient organization in a supersonic, reacting hydrogen-air temporal mixing layer using time-resolved mid-plane data from a three…
Event-level compression--chemistry coupling in a supersonic reacting temporal mixing layer
Sriram P. Kalathoor, Joseph C. Oefelein
Compression and heat release interact intermittently in high-speed reacting shear layers, and whole-field averages can obscure their coupling. We examine this coupling in a superso…
Near-Field Combustion-Noise Source Dynamics in a Reacting Supersonic Temporal Mixing Layer
Sriram P. Kalathoor, Joseph C. Oefelein
Compressibility and chemical reactions in reacting flows provide source mechanisms for pressure fluctuations whose signatures depend on the flow, source distribution, and acoustic…
Filtering effects on entropy transport and entropy-production structure in a supersonic reacting shear layer
Sriram P. Kalathoor, Joseph C. Oefelein
Spatial filtering is examined in time-resolved mid-plane DNS fields of a supersonic reacting shear layer using a sequence of box filters. The analysis tracks a nondimensional entro…