Assistant Professor, Department of Automobile Engineering, Nehru Institute of Technology, Coimbatore
The aim of this project is to increase the efficiency and performance of the engine by improving the design of the intake manifold port. Air or Air fuel mixture inside the intake manifold is one of the important factors, which governs the engine performance. Hence the flow phenomenon inside the intake manifold should be fully optimized to produce more engine power with better combustion and further reduces the emission. Various journals were reviewed in this paper, and in new engine development the pressure waves for the intake manifold is designed using Unigraphics NX-8.0 software and simulated using Ansys workbench 14.5 Fluent software, to study the internal air flow characteristic for the multi cylinder diesel engine. The simulations are carried out by using different steady state conditions Reynolds Averaged Navier Stoke (RANS) turbulence models such as Standard k-epsilon (k-ε) Re- Normalization Group k-ε (RNG), Realizable k-ε, k-omega (k-ω) and Reynolds Stress Model (RSM). Modeling and analysis carried out for conventional existing manifold and results were determined. Also new models created for future simulation work to study, compare and to provide better performing Intake manifold port.