Study of The Effect of Spark Advance, Engine Speed Variation and Number of Spark Plugs on Engine Performance Using CFD Software

Abstract

CFD Models have been extensively validated and used to predict the performance and emissions of spark ignition (SI) engines and compression ignition  CI  engines.  As opposed to experimental methods, numerical methods are often less expensive and faster. The present work is the numerical investigation of spark ignition SI  engines using open-source  Computational  Fluid  Dynamics (CFD)  tool  OpenFOAM.  The effect of spark advance,  engine speed variation and number of spark plugs on engine performance is studied with OpenFOAM module engineFOAM. The standard k-ε turbulence model is used along with  Reynolds  Averaged Navier  Stokes  (RANS)  equations for simulating flow field and heat transfer. The cylinder geometry is created in ICEM CFD and converted to  Open FOAM.  The variation in pressure and temperature values in the cylinder with crank angle are plotted. Also contours for temperature distribution and reaction regress variable are plotted.