Flow and Noise Characteristics of Centrifugal Fan under Different Stall Conditions

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="403541.fig.008a" src="https://static.hindawi.com/articles/mpe/volume-2014/403541/figures/403541.fig.008a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>The first moment</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="403541.fig.008b" src="https://static.hindawi.com/articles/mpe/volume-2014/403541/figures/403541.fig.008b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>The second moment</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="403541.fig.008c" src="https://static.hindawi.com/articles/mpe/volume-2014/403541/figures/403541.fig.008c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>The third moment</td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="403541.fig.008d" src="https://static.hindawi.com/articles/mpe/volume-2014/403541/figures/403541.fig.008d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>The fourth moment</td></tr></table></td></tr></table>

<table>Contours of sound power level in stall condition.</table>

Mathematical Problems in Engineering

fig8

Figure 8

Figure 8: Flow and Noise Characteristics of Centrifugal Fan under Different Stall Conditions 