• CFD

Visualize the flow with a results plane in a valve model

Use a results plane to view the flow through a valve model.


00:03

After running a valve model simulation in Autodesk CFD,

00:07

you can use a results plane to visualize a two-dimensional flow through the model.

00:12

To create a plane, on the ribbon, Results tab, in the Results Tasks panel, click Planes.

00:20

Then, in the Planes context panel, click Add.

00:24

To rotate the plane, left-click it, and click Z from the context toolbar.

00:30

The orange regions near the top of the poppet indicate that the flow is accelerating through the gap.

00:36

The flow on the trailing side of the poppet appears to be recirculating, but you will be able to tell more when you look at vectors.

00:43

Also, as the flow turns toward the outlet, it accelerates off the inside corner.

00:49

To see the pressure drop through the valve, right-click the plane,

00:53

and select Result > Static Pressure to display a plot of static gage pressure.

00:59

In this example, the outlet boundary condition was set to 0 Pa gage, and everything in the plot is relative to that value.

01:08

Because the pressure is 0 at the outlet, the pressure at the inlet is the overall pressure drop.

01:14

Note that the pressure dips low as it turns the inside corner near the outlet but not low enough for cavitation to be an issue.

01:22

Using a results plane to visualize the flow through a valve model is just one of the ways to view simulation results in Autodesk CFD.

Video transcript

00:03

After running a valve model simulation in Autodesk CFD,

00:07

you can use a results plane to visualize a two-dimensional flow through the model.

00:12

To create a plane, on the ribbon, Results tab, in the Results Tasks panel, click Planes.

00:20

Then, in the Planes context panel, click Add.

00:24

To rotate the plane, left-click it, and click Z from the context toolbar.

00:30

The orange regions near the top of the poppet indicate that the flow is accelerating through the gap.

00:36

The flow on the trailing side of the poppet appears to be recirculating, but you will be able to tell more when you look at vectors.

00:43

Also, as the flow turns toward the outlet, it accelerates off the inside corner.

00:49

To see the pressure drop through the valve, right-click the plane,

00:53

and select Result > Static Pressure to display a plot of static gage pressure.

00:59

In this example, the outlet boundary condition was set to 0 Pa gage, and everything in the plot is relative to that value.

01:08

Because the pressure is 0 at the outlet, the pressure at the inlet is the overall pressure drop.

01:14

Note that the pressure dips low as it turns the inside corner near the outlet but not low enough for cavitation to be an issue.

01:22

Using a results plane to visualize the flow through a valve model is just one of the ways to view simulation results in Autodesk CFD.

Was this information helpful?