How to extract centerline velocity from velocity profile in Fluent?

jmj99 · October 25, 2022, 05:57

I have a simple problem of flow in a 2-D rectangular channel and I have the velocity profile at the outlet. However, my grid is coarse and has 20 nodes and I get values at the nodes just before and after the centreline. Is there a way to find the values at centreline? Some kind of interpolation which is used?

LuckyTran · October 25, 2022, 13:29

Within Fluent, you can create a point probe at the center and create a report/monitor of any statistic (max, min, or average) of the point. Fluent will interpolate values to the point and the statistic will be degenerate because it is single valued and therefore reports the value at the point.

Of course you can always do the interpolation yourself externally or in CFD post.

October 25, 2022, 05:57	How to extract centerline velocity from velocity profile in Fluent?	#1
jmj99 New Member Joshua Mathew Join Date: Jul 2020 Posts: 2 Rep Power: 0	I have a simple problem of flow in a 2-D rectangular channel and I have the velocity profile at the outlet. However, my grid is coarse and has 20 nodes and I get values at the nodes just before and after the centreline. Is there a way to find the values at centreline? Some kind of interpolation which is used?

October 25, 2022, 13:29		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,750 Rep Power: 66	Within Fluent, you can create a point probe at the center and create a report/monitor of any statistic (max, min, or average) of the point. Fluent will interpolate values to the point and the statistic will be degenerate because it is single valued and therefore reports the value at the point. Of course you can always do the interpolation yourself externally or in CFD post. jmj99 likes this.

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