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Tracking particles backwards in time?

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Old   April 14, 2003, 12:44
Default Tracking particles backwards in time?
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Does anybody know of a way to track particles backwards in time. That is, to specify the end of the trajectory and then trace it back to some location. The particles are inert and the flow is steady.

(I need it to calculate the trajectories of particles that hit the corners of the boundary cell faces)

Thankful for any help // David
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