[Ursmooth]

Hello, I am trying to make a velocity contour plot in Paraview with the case OpenFoam cavity. To do this you need to convert your velocitys into a scalar. I tried to type U=sqrt(U_x^2+U_y^2+U_z^2) into the calculator but got a error message (see picture). How do you create a velocity scalar field correctly?

[Swempa]

Originally Posted by Ursmooth

Hello, I am trying to make a velocity contour plot in Paraview with the case OpenFoam cavity. To do this you need to convert your velocitys into a scalar. I tried to type U=sqrt(U_x^2+U_y^2+U_z^2) into the calculator but got a error message (see picture). How do you create a velocity scalar field correctly?

Hello Marius,

To solve your issue you can try to remove the "U=" in your expression, and only keep the following in the calculator expression:

sqrt(U_x^2+U_y^2+U_z^2)

The field "Result Array Name" defines the new name of the computed variable, you can instead of just using "Result" take a more describing name such as "U mag".

Cheers