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Getting time step instead of particle residence time

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Old   December 8, 2017, 05:03
Default Getting time step instead of particle residence time
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Hello everyone. I am trying to simulate transient blood flow through a simple straight tube artery. I also want to know that for how long time any blood particle will reside at any particular position. For this, I injected particles from the inlet of the geometry and exported the particle history data to CFD Post. In CFD Post, when I colored the particle tracks by particle residence time, I am not getting the time any particular particle will stay at any particular position, instead the time step. When I exported the results to Excel, I got the X,Y,Z coordinates of the particle's position at every time step, but in the column of 'particle residence time', I got time step.

How can I get to know that for how long does a particle reside at any particular position ?

I am sorry for my low understanding, I am a beginner.
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