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Large eddy simulations of coal gasification in an entrained flow gasifier
Abstract In this paper, we investigate multi-phase reacting flow in a coal-fed entrained flow gasifier using large-eddy simulations and Reynolds-averaged Navier Stokes models, respectively. AnExpand
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Reduction of Numerical Parameter Dependencies in Diesel Spray Models
Numerical grid and time-step-dependencies of Discrete Droplet Lagrangian spray models are identified. The two main sources of grid-dependency are due to errors in predicting the droplet-gas relativeExpand
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Unsteady turbulent round jets and vortex motion
A new model to predict the velocity distribution in round jets with time-varying injection profiles has been formulated as an extension of steady jet theory. The approach introduces an effectiveExpand
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A Model to Predict Spray-tip Penetration for Time-varying Injection Profiles
A new model to predict spray-tip penetration for a time-varying injection profile has been formulated based on gasjet theory. The approach involves using an effective injection velocity for the sprayExpand
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Effects of Injection Pattern Design on Piston Thermal Management in an Opposed-Piston Two-Stroke Engine
This paper presents analytical and measured results on the effects of injection pattern design on piston thermal management in an Opposed-Piston, Two-Stroke (OP2S) diesel engine. The OP2SExpand
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Gaseous Fuel Injection Modeling Using a Gaseous Sphere Injection Methodology
The growing interest in gaseous fuels (hydrogen and natural gas) for internal combustion engines calls for the development of computer models for simulation of gaseous fuel injection, air entrainmentExpand
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Developing a 55% BTE Commercial Heavy-Duty Opposed-Piston Engine without a Waste Heat Recovery System
Heavy-duty vehicles, currently the second largest source of fuel consumption and carbon emissions are projected to be fastest growing mode in transportation sector in future. There is a clear need toExpand
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Evaluation of the effects of injection timing and rate-shape on diesel low temperature combustion using advanced CFD modeling
It is well known that injection strategies including the injection timing and the injection rate-shape play an important role in determining engine performance, especially pollutant emissions. ButExpand
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