IMPACT OF SDR FLUCTUATIONS ON INCYLINDER FLOWS BY VARYING PISTON BOWL CONFIGARATIONS. -

. t is known fact that the CI engine combustion process is extremely complex. By modeling the In-cylinder processes by suitable combination of assumptions and equations we can analyze the critical features. The CFD models gives us complete understanding of the process under study from formulating the model, controlling the key variables giving rise to cost reduced and time consuming experimental methods. The CFD code used in the present work is FLUENT. FLUENT is very much useful in modeling In-cylinder flows and gives better analysis of pollutants. All the codes run with their own assumptions and restrictions. In this code, it is found that the scalar dissipation rate fluctuations (SDRF) has been ignored which may cause inconsistency in the results. Hence this work is proposed to account SDRF and possible inclusion in the existing code. Three piston bowl configurations spherical, Mexican hat bowl (MHB) and Mexican hat bowl with lip (MHB with Lip) is considered in the present work. The results were presented in the form of graphs with and without considering the effect of SDRF. The validation of the results is done by comparing with the available experimental data. - See more at:.