A Two-Zone Multigrid Model for SI Engine Combustion Simulation Using Detailed Chemistry

<table>Iso-surface of flame front and temperature distribution at <svg height="10.9125" id="M101" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 48.787498 10.9125" width="48.787498" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
<g transform="translate(72,-63.27)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">C</tspan>
<tspan style="font-size: 12.50px; " x="8.1394529" y="0">A</tspan>
<tspan style="font-size: 12.50px; " x="20.62995" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="32.670338" y="0">3</tspan>
</text>
</g>
</g>
</svg> (a) and 18 (b) deg ATDC simulated using two-zone MG model with different searching levels and skipping high-temperature cells (<svg height="11.0625" id="M102" style="vertical-align:-0.30096pt" version="1.1" viewbox="0 0 51.549999 11.0625" width="51.549999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.0625)">
<g transform="translate(72,-63.15)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑇</tspan>
<tspan style="font-size: 12.50px; " x="10.339981" y="0">&gt;</tspan>
<tspan style="font-size: 12.50px; " x="22.380369" y="0">8</tspan>
<tspan style="font-size: 12.50px; " x="28.63187" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="34.883369" y="0">0</tspan>
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</svg> K) in the unburned region.</table>

Journal of Combustion

fig11

Figure 11

Figure 11: A Two-Zone Multigrid Model for SI Engine Combustion Simulation Using Detailed Chemistry 