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Initial particle velocity changes in time.

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Hello, I am tracing electrons in the electric field (2D) and I want to investigate changes of their velocity vectors while moving. So, I want to compare actual angles (atan2(vy,vx)) with initial ones. To do this I need initial particle velocities cpt.v0xinl1 and cpt.v0yinl1 - but these initial velocities change with time. Even in case of no electric field, when the tracks are stright lines and cpt.vy is a constant value (which is expected), the cpt.v0xinl1 changes with time. How can initial value change in time? How can I obtain initial velocity vectors for each particle? Best regards, Jacek.


0 Replies Last Post 15 dic 2017, 12:14 GMT-5
COMSOL Moderator

Hello Jacek Zejma

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