Numerical Investigation of a First Stage of a Multistage Centrifugal Pump: Impeller, Diffuser with Return Vanes, and Casing

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="578072.fig.0015a" src="https://static.hindawi.com/articles/isrn/volume-2013/578072/figures/578072.fig.0015a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>5 blades</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="578072.fig.0015b" src="https://static.hindawi.com/articles/isrn/volume-2013/578072/figures/578072.fig.0015b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>6 blades</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="578072.fig.0015c" src="https://static.hindawi.com/articles/isrn/volume-2013/578072/figures/578072.fig.0015c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>7 blades</td></tr></table></td></tr></table>

<table>Vectors of liquid flow velocity contour.</table>

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fig15

Figure 15

Figure 15: Numerical Investigation of a First Stage of a Multistage Centrifugal Pump: Impeller, Diffuser with Return Vanes, and Casing 