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3. Single-zone combustion models
Compared with phenomenological models, the aim of single-zone combustion models is to provide a physics-based approach to predicting output quantities (cylinder pressure P cyl , heat release rate dQ c /dt...) when input parameters vary (supercharging, exhaust gas recirculation, injection timing, injection duration, engine speed...).
One-zone models are also known as 0D or zero-dimensional models, because they take into account temporal variations in variables, but assume that all intensive quantities (pressure, temperature, concentrations) are uniform throughout the volume of the combustion chamber. This assumption is, of course, questionable, since combustion in diesel engines is highly heterogeneous. The dimensional aspects of...
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Single-zone combustion models
Multi-zone combustion model
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