Modeling engine spray and combustion processes

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The use of mathematical models to numerically describe internal combustion engine performance is crucial for developing enhanced engines. Currently, simulation models are standard tools, and their significance is expected to grow with advancements in computer power and improvements in predictive quality. This book explores the most commonly used mathematical models for in-cylinder spray and combustion processes, which are vital for influencing fuel consumption and pollutant emissions. It summarizes the relevant thermodynamic, fluid dynamic, and chemical principles, followed by an explanation of their application to in-cylinder processes. Various modeling approaches for each subprocess are compared and discussed, focusing on the governing assumptions and simplifications. The book concludes by identifying which model approach is suitable for specific problems in engine development. It serves as a graduate-level textbook for combustion engineering students and as a reference for professionals in combustion engine modeling. The research for this work was conducted during my postdoctoral tenure at the Institute of Technical Combustion (ITV) in Germany and the Engine Research Center (ERC) in the USA.