Changes between Version 46 and Version 47 of Tutorial/ParticleImageVelocimetry


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Timestamp:
Feb 2, 2015, 10:15:14 AM (6 years ago)
Author:
vaillant1p
Comment:

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  • Tutorial/ParticleImageVelocimetry

    v46 v47  
    2323The vector color indicates the quality of the image correlation maximum leading to each vector, blue is excellent, green average, red poor. The thresholds for such color display can be adjusted from 0 to 1 (perfect image correlation)  in the frame''' [Vectors]''', using the boxes '''[!ColCode1] ''' and '''[!ColCode2]''',  or equivalently by the corresponding  sliders '''[Slider1]''' and '''[Slider2] '''.
    2424
    25 The black color indicates warning in the PIV calculation process. In this example, black vectors are indeed located on the edge, in zones outside the area of flow visualisation (this display can be desactivated by unselecting the box '''hide warn''' (tag '''[!CheckHideWarning]''') in the frame '''Vectors''').
     25The black color indicates warning in the PIV calculation process. In this example, black vectors are indeed located on the edge, in zones outside the area of flow visualisation (this display can be desactivated by unselecting the box '''hide warn''' (tag '''[!CheckHideWarning]''') in the frame '''[Vectors]''').
    2626
    2727The position (''x,y'') and velocity components (''U,V'') can be displayed in the upper right text display window by moving the mouse over it. The correlation 'C' and warning flag 'F' are also indicated. The warning flag is equal to 0 for good vectors while non-zero values indicate different calculation problems.