Work

Turbulent flame compressibility criterion for scramjet unstart and transition

Year: 2025

Type: article

Abstract: A new criterion predicting the onset of scramjet unstart is proposed. The source of unstart is hypothesized to stem from the turbulent compressible flame choking altering the optimal thermal choking design location or geometry of a scramjet combustor for heat release. This criterion is useful for assessing scramjet unstart and engine tuning for optimal heat release for ideal expansion and engine performance.

Source: Combustion and Flame

DOI: 10.1016/j.combustflame.2025.114044

Authors: Justin Sprunger, Andrew J. La Sorsa, Rachel Hytovick, Jonathan Sosa, Kareem A. Ahmed

Institutions: University of Central Florida, United States Naval Research Laboratory

Language: English

Topic: Computational Fluid Dynamics and Aerodynamics

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,320

Funders: Office of Naval Research, Air Force Office of Scientific Research