Numerical Investigations of Unsteady Flow in a Centrifugal Pump with a Vaned Diffuser

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="961580.fig.0015a" src="https://static.hindawi.com/articles/ijrm/volume-2013/961580/figures/961580.fig.0015a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Unsteady <svg height="12.4375" id="M122" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 33.174999 12.4375" width="33.174999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg></td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="961580.fig.0015b" src="https://static.hindawi.com/articles/ijrm/volume-2013/961580/figures/961580.fig.0015b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Unsteady RNG <svg height="12.4375" id="M123" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 33.174999 12.4375" width="33.174999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg></td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="961580.fig.0015c" src="https://static.hindawi.com/articles/ijrm/volume-2013/961580/figures/961580.fig.0015c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Unsteady realizable <svg height="12.4375" id="M124" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 33.174999 12.4375" width="33.174999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg></td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="961580.fig.0015d" src="https://static.hindawi.com/articles/ijrm/volume-2013/961580/figures/961580.fig.0015d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>Unsteady <svg height="12.4375" id="M125" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 37.049999 12.4375" width="37.049999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> SST</td></tr></table></td></tr></table>

<table>Static pressure coefficient, <svg height="22.200001" id="M120" style="vertical-align:-5.73163pt" version="1.1" viewbox="0 0 19.7875 22.200001" width="19.7875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>) at mid-span. </table>

International Journal of Rotating Machinery

fig15

Figure 15

Figure 15: Numerical Investigations of Unsteady Flow in a Centrifugal Pump with a Vaned Diffuser 