3 papers
physics.flu-dyn2026
Scaling Laws for Thermodiffusively Unstable Lean Premixed Turbulent Hydrogen-Air Flames
M. Gauding T. Lehmann, T. L. Howarth, L. Berger +9
Lean premixed hydrogen-air flames are strongly affected by thermodiffusive (TD) instabilities, which can alter the flame structure and enhance the local reactivity many-fold. Two r…
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…
physics.flu-dyn2023
Thermodiffusively unstable laminar hydrogen flame in a sufficiently large 3D computational domain -- Part I: Characteristic patterns
Wen Xu, Berger Lukas, Cai Liming +2
Thermodiffusive instabilities can have a leading order effect on flame propagation for lean premixed hydrogen flames. Many simulation studies have been performed to study this effe…