3 papers
physics.flu-dyn2025
Role of enthalpy transport in laminar premixed hydrogen flames at atmospheric and elevated pressures
Thomas L. Howarth, Terence Lehmann, Michael Gauding +1
This work discusses the role of diffusive enthalpy transport in relation to the origin of thermodiffusive instability and the resulting enhanced reactivity. Thermodiffusive effects…
physics.flu-dyn2025
Effects of Intrinsic Flame Instabilities on Nitrogen Oxide Formation in Laminar Premixed Ammonia/Hydrogen/Air Flames
Terence Lehmann, Nikita Dimidziev, Thomas L. Howarth +2
This study investigates the characteristics of nitrogen oxide (NO) formation in two-dimensional (2D) laminar premixed ammonia/hydrogen/air flames and the impact of thermodiffusivel…
physics.flu-dyn2024
Comprehensive linear stability analysis for intrinsic instabilities in premixed ammonia/hydrogen/air flames
Terence Lehmann, Lukas Berger, Thomas L. Howarth +4
Two-dimensional direct numerical simulations of planar laminar premixed ammonia/hydrogen/air flames are conducted for a wide range of equivalence ratios, hydrogen () fract…