A Wake Model for the Prediction of Propeller Performance at Low Advance Ratios

<table>Wake geometry from PSF-2 at different advance ratio ((a) <svg height="15.4" id="M102" style="vertical-align:-3.39066pt" version="1.1" viewbox="0 0 68.912498 15.4" width="68.912498" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><use xlink:href="#x1D43D"></use></g>
<g transform="matrix(.012,-0,0,-.012,7.825,15.187)"><use xlink:href="#x1D460"></use></g>
<g transform="matrix(.017,-0,0,-.017,17.638,11.112)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,32.324,11.112)"><use xlink:href="#x30"></use></g><g transform="matrix(.017,-0,0,-.017,40.484,11.112)"><use xlink:href="#x2E"></use></g><g transform="matrix(.017,-0,0,-.017,44.36,11.112)"><use xlink:href="#x38"></use></g><g transform="matrix(.017,-0,0,-.017,52.519,11.112)"><use xlink:href="#x38"></use></g><g transform="matrix(.017,-0,0,-.017,60.678,11.112)"><use xlink:href="#x39"></use></g>
</svg>; (b) <svg height="15.4" id="M103" style="vertical-align:-3.39066pt" version="1.1" viewbox="0 0 52.599998 15.4" width="52.599998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><use xlink:href="#x1D43D"></use></g>
<g transform="matrix(.012,-0,0,-.012,7.825,15.187)"><use xlink:href="#x1D460"></use></g>
<g transform="matrix(.017,-0,0,-.017,17.638,11.112)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,32.324,11.112)"><use xlink:href="#x30"></use></g><g transform="matrix(.017,-0,0,-.017,40.484,11.112)"><use xlink:href="#x2E"></use></g><g transform="matrix(.017,-0,0,-.017,44.36,11.112)"><use xlink:href="#x35"></use></g>
</svg>).</table>

International Journal of Rotating Machinery

fig6

Figure 6

Figure 6: A Wake Model for the Prediction of Propeller Performance at Low Advance Ratios 