Stall Margin Improvement in a Centrifugal Compressor through Inducer Casing Treatment

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2016/2371524/figures/2371524.fig.0017a.svgz" name="2371524.fig.0017a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Baseline impeller</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2016/2371524/figures/2371524.fig.0017b.svgz" name="2371524.fig.0017b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Impeller with CT-1</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2016/2371524/figures/2371524.fig.0017c.svgz" name="2371524.fig.0017c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Impeller with CT-2</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/ijrm/volume-2016/2371524/figures/2371524.fig.0017d.svgz" name="2371524.fig.0017d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Impeller with CT-3</td></tr></table>

<div>Circumferentially mass averaged relative Mach number distribution in the meridional plane for impellers without and with three casing treatment geometries at stall mass flow rate of baseline compressor.</div>

International Journal of Rotating Machinery

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Figure 17

Figure 17: Stall Margin Improvement in a Centrifugal Compressor through Inducer Casing Treatment 