RT Journal Article
T1 Towards predictive simplified chemical kinetics for hydrogen detonations
A1 Veiga López, Fernando
A1 Taileb, Said
A1 Chinnayya, Ashwin
A1 Melguizo Gavilanes, Josué
K1 2307 Química Física
K1 2299 Otras Especialidades Físicas
AB A methodology to develop predictive simplified kinetics schemes (one-step/three-step chain-branching) ispresented in which detonation velocity-curvature (𝐷 − 𝜅) curves computed with detailed thermochemistryare used as the fitting target aiming to capture the turning point of the curve (𝜅crit). This was motivatedby the similar trend observed between the 𝜅crit values obtained using the simplified schemes of Taileb et al.(2020), fitted using conventional methods, and the critical reactive layer heights for detonation propagationunder yielding confinement (ℎcrit) reported by the same authors. Both updated schemes satisfactorily reproducethe target 𝐷 − 𝜅 curves and are used to (re)compute multidimensional cellular detonations propagating inchannels and confined by inert layers. Simulations show a much better agreement with the results obtainedwith detailed kinetics for the detonation flow fields, cell sizes distributions, and ℎcrit. Moreover, it is observedthat the average curvatures of the computed fronts are in line with those predicted by the 𝐷 − 𝜅 formulation,providing supporting evidence of the applicability of reduced order models for fast and inexpensive estimatesof detonation limiting behaviors in safety studies
PB Combustion and Flame: 00102180
SN 0010-2180
YR 2024
FD 2024-11
LK http://hdl.handle.net/11093/7462
UL http://hdl.handle.net/11093/7462
LA eng
NO Combustion and Flame, 269: 113710 (2024)
NO Agence Nationale de la Recherche | Ref. FASTD ANR-20-CE05-0011-01
DS Investigo
RD 21-abr-2025