Abstract
The new eddy dissipation concept (EDC) model based on the operator-splitting procedure applied to the mass conservation equations for species participating in reversible chemical reactions representing combustion in a PaSR partially stirred reactor (PaSR) volume is analyzed. The model has been implemented in the KTVA-3V code together with a new droplet collision procedure, and its application to spray combustion simulation is illustrated by the results of the 3-D modeling of the DI Diesel Volvo D12C engine. The chemical mechanism of diesel oil surrogate consisted of 68 species (including soot aromatic precursors) participating in 285 reversible reactions has been applied to simulation of MK (Modulated Kinetics) diesel spray combustion regime. Mean features of MK combustion under conditions of delayed injection when auto-ignition has much in common with the HCCI process are predicted in accordance with experimental data.
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