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1 Journal of Polish CIMAC

1 2014

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3d mesh model for rans numerical research on marine 4-stroke engine

Kowalski J., Jaworski P.

Journal of Polish CIMAC

2014

Vol. 9, no 1

87--94

The article consist the 3d mesh analysis prepared for simulation of the processes in combustion chamber of marine compression ignition engine. The three moving meshes models where prepared: A–mesh for engine cycle work simulation; B –mesh of combustion chamber volume for work stroke simulations, no valves included; C-mesh of combustion chamber including mountings screw whole for work stroke simulations , no valves including. Prepared mesh where used for numerical simulations of injection and combustion processes in engine combustion chamber. Type C model, even if the total number of cells is lower in comparison to B model, result in calculation time increase. B and C models are solution for fast and robust validation of injection and auto ignition model parameters. Type A model is only one suitable for full cycle simulation. Only with accurate initial and boundary conditions the qualitative results of the injection, mixing and combustion process can be obtain on mesh type B and C.