Visualize the flow with a results plane in a valve model

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After running a valve model simulation in Autodesk CFD,

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

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

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Then, in the Planes context panel, click Add.

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

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

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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.

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

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

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

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

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

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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.

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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.