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How can I plot a vector field of altered value?

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Old   August 19, 2014, 05:53
Default How can I plot a vector field of altered value?
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Sangwoo Kim
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Hi all!

I made a relative velocity by using Specify Equations as follows.

{velocityX_alter}={u}-20.35
{velocityMagnitude_alter}=sqrt({velocityX_alter}*{ velocityX_alter}+{v}*{v}+{w}*{w})

and I plot contours of these values successfully.

But I don't know how plot the vectors of them.
If I click Slice>Vector>Show Vectors, it seems to show velocityMagnitude, not velocityMagnitude_alter.

How should I do???

Thanks in advance!
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Old   August 19, 2014, 06:02
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Sangwoo Kim
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And please let me know how to draw streamtraces using altered velocity..

Thank you
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Old   August 20, 2014, 03:06
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Sangwoo Kim
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I got it!
And I leave a post for someone who may be in similar situation.

I clicked Plot>Vector>Variables in menu bar, and changed U variable into my altered variable, 'velocityX_alter'. Then vector and streamtrace are changed.
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