CFD Modeling of Wall Steam Condensation: Two-Phase Flow Approach versus Homogeneous Flow Approach

<table>Radial profile of the helium and vapor molar concentration at <svg height="11.225" id="M58" style="vertical-align:-0.27588pt" version="1.1" viewbox="0 0 58.924999 11.225" width="58.924999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.225)">
<g transform="translate(72,-63.02)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑍</tspan>
<tspan style="font-size: 12.50px; " x="9.6523161" y="0">5</tspan>
<tspan style="font-size: 12.50px; " x="19.367147" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="31.407536" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="37.659035" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="40.784786" y="0">9</tspan>
</text>
</g>
</g>
</svg> m and <svg height="11.0375" id="M59" style="vertical-align:-0.27588pt" version="1.1" viewbox="0 0 74.5625 11.0375" width="74.5625" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.0375)">
<g transform="translate(72,-63.17)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑍</tspan>
<tspan style="font-size: 12.50px; " x="9.6523161" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="15.903816" y="0">3</tspan>
<tspan style="font-size: 12.50px; " x="25.618647" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="37.659035" y="0">3</tspan>
<tspan style="font-size: 12.50px; " x="43.910538" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="47.036285" y="0">9</tspan>
<tspan style="font-size: 12.50px; " x="53.287785" y="0">3</tspan>
</text>
</g>
</g>
</svg> m: steady state 4.</table>

Science and Technology of Nuclear Installations

fig17

Figure 17

Figure 17: CFD Modeling of Wall Steam Condensation: Two-Phase Flow Approach versus Homogeneous Flow Approach 