Changes between Version 6 and Version 7 of Tutorial/AdvancedParticleImagingVelocimetry2


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Timestamp:
Aug 27, 2013, 1:13:30 AM (8 years ago)
Author:
sommeria
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  • Tutorial/AdvancedParticleImagingVelocimetry2

    v6 v7  
    1818Choose the following parameters:
    1919 * pair j=1-2 for Civ1 and Civ2 : it minimises the time interval which is needed to capture the large velocity in the plume.
    20  * CorrBox x,y=(5 31) which optimizes the resolution in x (5 pixels)
     20 * !CorrBox x,y=(5 31) which optimizes the resolution in x (5 pixels)
    2121 * Search x, y=(25 55) which allows for a larger velocity component along y .
    22  * auto-grid Dx=2, Dy=10, consistent with CoorBox (about half the box size).
     22 * auto-grid Dx=2, Dy=10, consistent with !CoorBox (about half the box size).
    2323 * Mask selected, with name .../Dalsa1.mask/mask_plume.png .
    24  * For Civ2, same parameters CorrBox, auto-grid and Mask.
     24 * For Civ2, same parameters !CorrBox, auto-grid and Mask.
    2525 * For patch and Fix, default parameters.
    2626
     
    2929
    3030= merging data on a common grid =
     31create a projection grid in phys coordinates. For that open a velocity field with uvmat, displayed in phys coordinates. Use the upper bar menu option Projection object/plane. Then in the GUI '''set_object''', choose the option !ProjMode=interp_lin. Choose a mesh 0.2 cm in each direction, ranging from 0 to 55 in x and 0 to 58.8 in y. Press REFRESH to see the result of projection in the GUI view_field.