• Vijayendra Patil
• Hemant Wagh
• Sachin Badgujar

Combustion is a chemical reaction in which certain elements of fuel like Hydrogen and Carbon combine with Oxygen liberating heat energy and causing and increase in temperature of the gases, within the engine cylinder. CFD approach can be a tool for gaining insight into the in-cylinder combustion process of diesel engine which is already a area of interest from recent years. It is the application of three dimensional codes, which are able to solve governing flow equations and yields detailed description of velocity, turbulence, pressure, temperature, etc. IC engines involve complex fluid dynamic interactions between air flow, fuel injection, moving geometries, and combustion. Fluid dynamics phenomena like jet formation, wall impingement with swirl and tumble, and turbulence production are critical for high efficiency engine performance and meeting emissions criteria. The design problems that are encountered include port-flow design, combustion chamber shape design, variable valve timing, injection and ignition timing, and design for low or idle speeds. In Internal combustion Engines CFD may be useful to study one of the most complicated process of combustion in Engines. In this paper a CFD in-cylinder combustion analysis are carried out on a single cylinder four stroke Direct Injection (DI) Engine. The engine is 661cc Kirloskar engine. One of the main process in CFD Analysis is the Grid Generation. Proper and improve grids will give better and accurate results, Four grid cases having 327,1391,8413 and 35154 elements and 905,2830,15130 and 60797 nodes are considered for Grid Independence study. The optimum grid is find out of these four for CFD Combustion analysis and the computed data is validated with Experimental data available which are in good agreement.

CFD, Engine Simulation, Grid Independence Study, Transient IC Engine Analysis

"CFD MODELING AND STUDY OF COMBUSTION IN DI DIESEL ENGINE FOR DIFFERENT GRID GENERATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 1, page no.385-391, January-2020, Available :http://www.jetir.org/papers/JETIR1908999.pdf

"CFD MODELING AND STUDY OF COMBUSTION IN DI DIESEL ENGINE FOR DIFFERENT GRID GENERATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 1, page no. pp385-391, January-2020, Available at : http://www.jetir.org/papers/JETIR1908999.pdf