# Cumulative Flow

**URL:** https://discourse.paraview.org/t/cumulative-flow/12565
**Category:** ParaView Support
**Created:** [July 24, 2023, 5:16am UTC](https://discourse.paraview.org/t/cumulative-flow/12565 "2023-07-24T05:16:17Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Tobias](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tobias](https://discourse.paraview.org/u/Tobias)
#### Post date: [July 24, 2023, 5:16am UTC](https://discourse.paraview.org/t/cumulative-flow/12565/1 "2023-07-24T05:16:17Z")

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Hello,  
I wonder if it is possible to display some sort of cumulative flow?

I have in OpenFOAM the field alpha.water which indicates the presence of water in a domain and is a scalar between 0 and 1.  
This water flows in a channel.  
Is there a way to display all the places at once, where alpha.water was = 1 during all the saved timesteps?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [July 24, 2023, 11:30am UTC](https://discourse.paraview.org/t/cumulative-flow/12565/2 "2023-07-24T11:30:45Z")

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If you select the domain you want you can then use dedicated filters to compute the sum or a programmable filter.

Is that what you want ?