Christopher J. Rutland
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View article: Engine Valve Actuation For Combustion Enhancement
Engine Valve Actuation For Combustion Enhancement Open
A combustion chamber valve, such as an intake valve or an exhaust valve, is briefly opened during the compression and/or power strokes of a 4-stroke combustion cycle in an internal combustion engine (in particular, a diesel or CI engine). …
View article: Impact of Active Control Turbocharging on the Fuel Economy and Emissions of a Light-Duty Reactivity Controlled Compression Ignition Engine: A Simulation Study
Impact of Active Control Turbocharging on the Fuel Economy and Emissions of a Light-Duty Reactivity Controlled Compression Ignition Engine: A Simulation Study Open
While forced induction strategies such as turbocharging can increase the power output and extend the load limit of engines operating on low temperature combustion strategies such as reactivity controlled compression ignition, the low exhau…
View article: Large-eddy spray simulation under direct-injection spark-ignition engine-like conditions with an integrated atomization/breakup model
Large-eddy spray simulation under direct-injection spark-ignition engine-like conditions with an integrated atomization/breakup model Open
In this work, a hybrid breakup model tailored for direct-injection spark-ignition engine sprays is developed and implemented in the OpenFOAM CFD code. The model uses the Lagrangian–Eulerian approach whereby parcels of liquid fuel are injec…
View article: A Sub-grid Scale Energy Dissipation Rate Model for Large-eddy Spray Simulations
A Sub-grid Scale Energy Dissipation Rate Model for Large-eddy Spray Simulations Open
In high Reynolds number turbulent flows, energy dissipation refers to the process of energy transfer from kinetic energy to internal energy due to molecular viscosity. In large eddy simulation (LES) with one-equation turbulence models, the…
View article: Importance of filter’s microstructure in dynamic filtration modeling of gasoline particulate filters (GPFs): Inhomogeneous porosity and pore size distribution
Importance of filter’s microstructure in dynamic filtration modeling of gasoline particulate filters (GPFs): Inhomogeneous porosity and pore size distribution Open
View article: Load Limit Extension in Pre-Mixed Compression Ignition Using a 2-Zone Combustion System
Load Limit Extension in Pre-Mixed Compression Ignition Using a 2-Zone Combustion System Open
A novel 2-zone combustion system was examined at medium load operation consistent with loads in the light duty vehicle drive cycle (7.6 bar BMEP and 2600 rev/min). Pressure rise rate and noise can limit the part of the engine map where pre…
View article: Large-Eddy simulation analysis of spark configuration effect on cycle-to-cycle variability of combustion and knock
Large-Eddy simulation analysis of spark configuration effect on cycle-to-cycle variability of combustion and knock Open
Cycle-to-cycle variability is numerically simulated for high-speed, full-load operation of a turbocharged gasoline direct injection engine. Large-Eddy simulation is adopted to replicate the fluctuations of the flow field affecting the turb…