# Depth-averaged quantities in Ansys CFD-POST (VOF simulation)

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 September 13, 2019, 14:08 Depth-averaged quantities in Ansys CFD-POST (VOF simulation) #1 New Member   Ali Habibzadeh Join Date: Apr 2009 Location: Vancouver, Canada Posts: 15 Rep Power: 13 Hi, I am looking for a way to display depth-averaged quantities such as depth-averaged velocity in a VOF model conducted in Fluent. I found a thread under the EnSight forum to do it, but I'd like to use Ansys CFD-POST. Any help will be appreciated. Thanks in advance.

September 14, 2019, 09:27
#2
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Lolita
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Quote:
 Originally Posted by arhabib Hi, I am looking for a way to display depth-averaged quantities such as depth-averaged velocity in a VOF model conducted in Fluent. I found a thread under the EnSight forum to do it, but I'd like to use Ansys CFD-POST. Any help will be appreciated. Thanks in advance.
Define a formula for depth-averaged velocity
Name it some new variable
calculate it

September 14, 2019, 09:35
#3
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Thanks rupak504,

To define a formula, I'll need to average or integrate in only the vertical direction. Is there a function to do so?
I found that in EnSight the function radiograph_mesh does this but what's the corresponding function in CFD-POST? I don't want to use EnSight.

Thanks

Quote:
 Originally Posted by rupak504 Define a formula for depth-averaged velocity Name it some new variable calculate it

September 14, 2019, 09:45
#4
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Lolita
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Quote:
 Originally Posted by arhabib Thanks rupak504, To define a formula, I'll need to average or integrate in only the vertical direction. Is there a function to do so? Thanks
Define a vertical line in your domain.
Integrate the variable along that line.

September 14, 2019, 09:53
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Yes, but I am looking for a 2D map of depth-averaged velocity in the entire domain. It won't be practical to define vertical lines in the entire domain.
I am thinking a function that integrates in the vertical along all mesh nodes or faces. As I said Radiograph_mesh in EnSight does this. But I'm looking for a similar function in Ansys Post.

Quote:
 Originally Posted by rupak504 Define a vertical line in your domain. Integrate the variable along that line.