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## Simulation CFD

New Member
Posts: 2
Registered: ‎05-08-2013

# Calculate Circumferential Velocity and show result on a plane

562 Views, 4 Replies
05-08-2013 01:26 AM

Hey community,

I'm new here and hope you can help me. I've got a tube flow with flow direction to the x-axis. Because of swirl I also want to calculate the resulting circumferential velocity. At the "results" I can see the velocity in y-direction and in z-direction on a plane. I just want to calculate the resulting circumferential velocity. Is this somehow possible?

Thank you in adavance.

Regards

MR

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*Expert Elite*
Posts: 440
Registered: ‎10-02-2012

# Re: Calculate Circumferential Velocity and show result on a plane

05-13-2013 06:05 AM in reply to: reuther.marcel

How about finding the individual Y and Z velocities and take the vector addition of the two?

OJ

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New Member
Posts: 2
Registered: ‎05-08-2013

# Re: Calculate Circumferential Velocity and show result on a plane

05-13-2013 02:11 PM in reply to: OmkarJ

Thank you for your response. Can you explain me how can I calculate the addition of two vectors?

Regards

MR

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*Expert Elite*
Posts: 440
Registered: ‎10-02-2012

# Re: Calculate Circumferential Velocity and show result on a plane

05-15-2013 08:46 AM in reply to: reuther.marcel

I hope by circumferential, you meant tangential (ie in YZ plane). If you want to calculoate the velocity at any point, just use the normal vector addition rules and find the angle. But if you want to see the contours of the tangential velocities, then you need to define a custom variable and I think SimCFD does not allow it.

OJ

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Member
Posts: 3
Registered: ‎03-14-2014

# Re: Calculate Circumferential Velocity and show result on a plane

03-14-2014 06:05 AM in reply to: OmkarJ
I am also interested in your solution. I have calculated the vector in the YZ Plane. But how can I calculate the tangential velocity?
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