[General] Velocity vector

folan · January 25, 2018, 11:19

Hello,

This question was asked in many other forums but unfortunately not answer yet...Do anybody know:

How can I create a velocity vector field from velocity components?

I have U, V, W and I can comute Velcocity=sqrt((U*U)+(V*V)+(W*W)) but this is a scalar value without directions.

How can I give a direction to this scalar value and then use it to compute the streamlines?

help is really appreciated
Thanks

forgeanalytics · January 25, 2018, 11:55

You can compose a vector field by using the iHat, jHat, and kHat operators in the calculator.

If your scalar values are U, V, and W, your velocity vector field calculator would be:

(iHat*U) + (jHat*V) + (kHat*W)

Let me know if you have any trouble

folan · January 25, 2018, 18:01

That works, that what I was looking for ...
many thanks

January 25, 2018, 11:19	Velocity vector	#1
folan New Member azdasher Join Date: Jan 2017 Posts: 5 Rep Power: 9	Hello, This question was asked in many other forums but unfortunately not answer yet...Do anybody know: How can I create a velocity vector field from velocity components? I have U, V, W and I can comute Velcocity=sqrt((UU)+(VV)+(W*W)) but this is a scalar value without directions. How can I give a direction to this scalar value and then use it to compute the streamlines? help is really appreciated Thanks

January 25, 2018, 11:55		#2
forgeanalytics New Member Forge Analytics Join Date: Jan 2018 Posts: 16 Rep Power: 8	You can compose a vector field by using the iHat, jHat, and kHat operators in the calculator. If your scalar values are U, V, and W, your velocity vector field calculator would be: (iHatU) + (jHatV) + (kHat*W) Let me know if you have any trouble folan likes this. __________________ https://forgeanalytics.io/ \| Data Management for Scientists and Engineers

January 25, 2018, 18:01	Thank you	#3
folan New Member azdasher Join Date: Jan 2017 Posts: 5 Rep Power: 9	That works, that what I was looking for ... many thanks

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