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#1 |
New Member
Tong Zhou
Join Date: Nov 2011
Posts: 12
Rep Power: 14 ![]() |
I have a rotating region in my case. and I want to plot the relative velocity. How to choose the reference zone?
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#2 |
Senior Member
Join Date: Oct 2009
Location: Germany
Posts: 636
Rep Power: 21 ![]() |
There is one field function for the relative velocity in each reference frame. You can choose it like any other field function.
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#3 |
New Member
Tong Zhou
Join Date: Nov 2011
Posts: 12
Rep Power: 14 ![]() |
Hi, thank you for your reply. I'm sorry I am not understand clearly...
actually I defined a line in the domain, then choose plot->XY Plot->relative velocity... but I can not find any option to change the reference frame of this curve. can you show it one step by step? thank you so much. |
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#4 |
Senior Member
Join Date: Oct 2009
Location: Germany
Posts: 636
Rep Power: 21 ![]() |
In the dialog where you define the quantity to display, you can just choose the velocity relative to a reference frame, just like any other field function. Don't look for "relative velocity" but for "velocity". The velocities relative to a reference frame could be found when pointing on the little black arrow.
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#5 | |
New Member
Tong Zhou
Join Date: Nov 2011
Posts: 12
Rep Power: 14 ![]() |
Thank you so much......
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Tags |
reference frame, relative velocity |
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