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<p style="margin-top:0;margin-bottom:0">Dear Jian,</p>
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<p style="margin-top:0;margin-bottom:0">You can do the conversion when you process the data by taking the dot product of any (x,y,z) vector with the unit-radius vector, which is</p>
<p style="margin-top:0;margin-bottom:0">U = (x,y)/r, where r = sqrt( x*x+y*y)</p>
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<p style="margin-top:0;margin-bottom:0">hth,</p>
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<p style="margin-top:0;margin-bottom:0">Paul</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Nek5000-users <nek5000-users-bounces@lists.mcs.anl.gov> on behalf of nek5000-users@lists.mcs.anl.gov <nek5000-users@lists.mcs.anl.gov><br>
<b>Sent:</b> Wednesday, January 17, 2018 11:49:03 AM<br>
<b>To:</b> nek5000-users@lists.mcs.anl.gov<br>
<b>Subject:</b> [Nek5000-users] How to change the x y z coordinates to be polar</font>
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<div dir="ltr">Hi Nek,
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<div>Do you know how to change the result of rms to be based on polar coordinates? Currently I have x, y and z directions for the circular pipe. I have to plot the rms in axial,radial and azimuthal. </div>
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<div>Cheers,</div>
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<div>Jian</div>
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