Abstract
Geometrical features of combustion chamber are important factors in subsequent engine’s combustion and emissions. Control over combustion that is difficult to attain due to the complexity of the processes involved is the key objective in designing the combustion chamber. Reduction of engine emissions and fuel consumption can be reached by an improved control over the degree of homogeneity of the air–fuel mixture, cycle-to-cycle variation, and turbulence intensity. The CFD simulation to investigate the effect of piston bowl of a four-stroke direct injection compression ignition engine under the operating condition is presented. The analyses are dedicated to investigate the outcome of the piston shape differences to the fluid flow and turbulence characteristics for air–fuel mixture preparation in terms of turbulence kinetic energy. The numerical calculations were performed in a single cylinder direct injection compression ignition engine running at wide open throttle condition by using the CFD code. Two different piston bowls for certain engine speeds were considered to compare and evaluate the mentioned parameters produced during intake and compression stroke. The results obtained from the numerical analysis can be employed to examine the homogeneity of air–fuel mixture configuration for better combustion process and engine performance.
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Pappula, B., Kannaiyan, G.N., Turaka, S. (2021). On Numerical Modeling and Flow Analysis of Piston Bowl Geometry of a Compression Ignition Engine. In: Kumar, S., Rajurkar, K.P. (eds) Advances in Manufacturing Systems. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-33-4466-2_18
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