Suppression of Performance Curve Instability of an Axial-Flow Pump by Using a Double-Inlet-Nozzle

<table>Prerotation at double-inlet-nozzle at stall conditions, <svg height="19.012501" id="M33" style="vertical-align:-5.56921pt" version="1.1" viewbox="0 0 89.150002 19.012501" width="89.150002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> upstream of the rotor.<i></i><svg height="20.875" id="M35" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 109.6875 20.875" width="109.6875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>.</table>

International Journal of Rotating Machinery

fig13

Figure 13

Figure 13: Suppression of Performance Curve Instability of an Axial-Flow Pump by Using a Double-Inlet-Nozzle 