In the first part of the analysis of the results, we have looked at the swirl as a function of time. Increased swirl leads to an increase in the mixing of the fuel spray, quicker atomization, and therefore more uniform and fuller combustion. In the animation below, we are looking at the swirl as a function of time in the volume, along with a quantitative graph of the average swirl as a function of time. The prolonged extent of higher swirl results in increased mixing of the fuel spray and homogeneity of the fuel-air mixture leading to improved combustion.