Numerical Modeling of Unsteady Cavitating Flows around a Stationary Hydrofoil

<table>Comparisons of the predicted vapor fraction contours and flow streamlines predicted using the Merkle cavitation model with <svg height="11.125" id="M293" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 36.237499 11.125" width="36.237499" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,10.862)"><use xlink:href="#x1D45B"></use></g><g transform="matrix(.017,-0,0,-.017,13.305,10.862)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,28.008,10.862)"><use xlink:href="#x33"></use></g>
</svg> on the left with experimental observations on the right. <svg height="11.125" id="M294" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 57.5 11.125" width="57.5" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,10.862)"><use xlink:href="#x1D70E"></use></g><g transform="matrix(.017,-0,0,-.017,14.375,10.862)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,29.079,10.862)"><use xlink:href="#x31"></use></g><g transform="matrix(.017,-0,0,-.017,37.239,10.862)"><use xlink:href="#x2E"></use></g><g transform="matrix(.017,-0,0,-.017,41.114,10.862)"><use xlink:href="#x30"></use></g><g transform="matrix(.017,-0,0,-.017,49.274,10.862)"><use xlink:href="#x30"></use></g>
</svg>, Re = 750,000, <svg height="15.4" id="M295" style="vertical-align:-3.39066pt" version="1.1" viewbox="0 0 53.075001 15.4" width="53.075001" 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="#x1D449"></use></g>
<g transform="matrix(.012,-0,0,-.012,12.675,15.187)"><use xlink:href="#x221E"></use></g>
<g transform="matrix(.017,-0,0,-.017,30.162,11.112)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,44.849,11.112)"><use xlink:href="#x35"></use></g>
</svg> m/s, and <svg height="13.1375" id="M296" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 42.400002 13.1375" width="42.400002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.875)"><use xlink:href="#x1D6FC"></use></g><g transform="matrix(.017,-0,0,-.017,14.426,12.875)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,29.13,12.875)"><use xlink:href="#x36"></use></g>
<g transform="matrix(.012,-0,0,-.012,37.3,4.712)"><use xlink:href="#x2218"></use></g>
</svg>.</table>

International Journal of Rotating Machinery

fig15

Figure 15

Figure 15: Numerical Modeling of Unsteady Cavitating Flows around a Stationary Hydrofoil 