Abstract
With the exponentially increasing computational power of modern computers, multi-dimensional Computational Fluid Dynamics (CFD) has found more and more applications in diesel engine research, design and development since its initiation in the late 1970s. Enhanced understandings of the physical processes of diesel combustion and correspondingly improved numerical models and methods have both driven simulations using multi-dimensional CFD tools from qualitative description towards quantitative prediction. To numerically resolve the complex physics of diesel combustion requires modelling of turbulent flows, high-pressure spray development, as well as combustion chemistry and relevant mechanism of pollutants formation. This chapter reviews the basic approach of multi-dimensional CFD modelling of diesel combustion, and focus is placed on the description of advanced turbulence, spray, and combustion models, and the introduction of popular CFD codes for engine simulations. In addition, recent efforts for reducing the computational expense of multi-dimensional CFD modelling are also discussed.
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