Changes between Version 44 and Version 45 of Tutorial/AdvancedParticleImagingVelocimetry2
 Timestamp:
 Jan 21, 2015, 9:49:08 AM (6 years ago)
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Tutorial/AdvancedParticleImagingVelocimetry2
v44 v45 49 49 The previously used linear interpolation does not provide field derivatives. For that purpose, we proceed as previouisly but use the option '''[!ProjMode]=''''interp_tps' for the projection plane in '''set_object'''. To reach this GUI using the same projection object as before just select the check box '''edit''' to open the GUI '''set_object'''. Change the option '''[!ProjMode]''' and click on '''[REFRESH]'''. 50 50 51 In the GUI '''series''', select simultaneously the fields 'vec(U,V)', 'curl(U,V)' and 'div(U,V)' to get the vorticity and divergence in addition to velocity. The calculation is significantly longer that for 'interp_lin', so in the demo we use a resolution DX=DY=0.2 cm for the projection plane (instead of 0.1 cm).51 In the GUI '''series''', select simultaneously the fields 'vec(U,V)', 'curl(U,V)' and 'div(U,V)' (using the keyboard Ctrl button) to get the vorticity and divergence in addition to velocity. The calculation is significantly longer that for 'interp_lin', so in the demo we use a resolution DX=DY=0.2 cm for the projection plane (instead of 0.1 cm). 52 52 53 Open the resulting files with uvmat. Select a vector (components U, V) or a scalar curl or div to visualize the different fields.53 Open the resulting files with '''uvmat'''. Select a vector (components U, V) or a scalar curl or div to visualize the different fields.