CFD Simulation of Annular Centrifugal Extractors

<table>System of concentric cylinders and various vortex patterns in the absence of axial flow: <svg height="13.45" id="M30" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 18.35 13.45" width="18.35" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.45)">
<g transform="translate(72,-61.24)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="4.1634989" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="10.414999" y="0">)</tspan>
</text>
</g>
</g>
</svg> couette flow, <svg height="13.45" id="M31" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 18.35 13.45" width="18.35" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.45)">
<g transform="translate(72,-61.24)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="4.1634989" y="0">2</tspan>
<tspan style="font-size: 12.50px; " x="10.414999" y="0">)</tspan>
</text>
</g>
</g>
</svg> wavy vortex flow, <svg height="13.45" id="M32" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 18.35 13.45" width="18.35" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.45)">
<g transform="translate(72,-61.24)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="4.1634989" y="0">3</tspan>
<tspan style="font-size: 12.50px; " x="10.414999" y="0">)</tspan>
</text>
</g>
</g>
</svg> chaotic vortex flow, <svg height="13.45" id="M33" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 18.35 13.45" width="18.35" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.45)">
<g transform="translate(72,-61.24)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="4.1634989" y="0">4</tspan>
<tspan style="font-size: 12.50px; " x="10.414999" y="0">)</tspan>
</text>
</g>
</g>
</svg> Taylor vortex flow and, <svg height="13.6375" id="M34" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 18.35 13.6375" width="18.35" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.6375)">
<g transform="translate(72,-61.09)">
<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="4.1634989" y="0">5</tspan>
<tspan style="font-size: 12.50px; " x="10.414999" y="0">)</tspan>
</text>
</g>
</g>
</svg> turbulent Taylor vortex flow.</table>

International Journal of Chemical Engineering

CFD Simulation of Annular Centrifugal Extractors

Figure 3