Direct numerical simulations of turbulent reacting flows with shock waves and stiff chemistry using many-core/GPU acceleration
Compressible reacting flows may display sharp spatial variation related to shocks, contact
discontinuities or reactive zones embedded within relatively smooth regions. The presence …
discontinuities or reactive zones embedded within relatively smooth regions. The presence …
A statistical analysis of developing knock intensity in a mixture with temperature inhomogeneities
Knock formation and its intensity for a stoichiometric ethanol/air mixture under a
representative end-gas auto-ignition condition in IC engines with temperature …
representative end-gas auto-ignition condition in IC engines with temperature …
Prediction of ignition modes of NTC-fuel/air mixtures with temperature and concentration fluctuations
The ignition regime criteria proposed by Im et al.(2015) are extended to account for
temperature and concentration fluctuations. The newly-developed criteria are applied to …
temperature and concentration fluctuations. The newly-developed criteria are applied to …
Effects of turbulence and temperature fluctuations on knock development in an ethanol/air mixture
The effects of turbulence on knock development and intensity for a thermally
inhomogeneous stoichiometric ethanol/air mixture at a representative end-gas autoignition …
inhomogeneous stoichiometric ethanol/air mixture at a representative end-gas autoignition …
Effects of mixing assumptions and models for LES of Hydrogen-fueled Rotating Detonation Engines
Abstract Large Eddy Simulations (LES) are a powerful tool to analyze the flow in Rotating
Detonation Engines, but their implementation is not straightforward. Many groups use …
Detonation Engines, but their implementation is not straightforward. Many groups use …
Detonation development in hydrogen/air mixtures inside a closed chamber: role of a cold wall
Detonation development from a hot spot has been extensively studied, where ignition occurs
earlier than that in the surrounding mixtures. It has also been reported that a cool spot can …
earlier than that in the surrounding mixtures. It has also been reported that a cool spot can …
Autoignition and detonation development from a hot spot inside a closed chamber: Effects of end wall reflection
The advancement of highly boosted internal combustion engines (ICEs) with high thermal
efficiency is mainly constrained by knock and super-knock, respectively, due to the end gas …
efficiency is mainly constrained by knock and super-knock, respectively, due to the end gas …
Effects of non-thermal termolecular reactions on detonation development in hydrogen (H2)/methane (CH4)-air mixtures
The binary fuel blend of H 2/CH 4 is one of the most promising hydrogen-enriched
hydrocarbon fuels in spark-ignition (SI) engines. Yet, the undesirable phenomenon of super …
hydrocarbon fuels in spark-ignition (SI) engines. Yet, the undesirable phenomenon of super …
Direct numerical simulation of preignition and knock in engine conditions
Theoretical framework and high-fidelity direct numerical simulations (DNS) on preignition
and knock encountered in internal combustion (IC) engines are briefly reviewed in this …
and knock encountered in internal combustion (IC) engines are briefly reviewed in this …
Auto-ignitive deflagration speed of methane (CH4) blended dimethyl-ether (DME)/air mixtures at stratified conditions
Front propagation speeds from fully resolved unsteady one dimensional simulations with
dimethyl-ether (DME)/methane (CH 4)/air mixtures under engine relevant conditions are …
dimethyl-ether (DME)/methane (CH 4)/air mixtures under engine relevant conditions are …