# Output Pressure confficient over cylinder surface

**URL:** https://discourse.paraview.org/t/output-pressure-confficient-over-cylinder-surface/9091
**Category:** ParaView Support
**Created:** [March 1, 2022, 1:34am UTC](https://discourse.paraview.org/t/output-pressure-confficient-over-cylinder-surface/9091 "2022-03-01T01:34:52Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![xq520](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/x/43a26b/32.png) [@xq520](https://discourse.paraview.org/u/xq520)
#### Post date: [March 1, 2022, 1:34am UTC](https://discourse.paraview.org/t/output-pressure-confficient-over-cylinder-surface/9091/1 "2022-03-01T01:34:52Z")

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Hello everyone, I am a new guy to paraview.

I want to extract pressure confficient (Cp) on the circle surface. But I don’t know how to do it? Could anyone help me? Thanks for a lot.

 ![9OSEX~$8Z_T{%DZLGP(SSN6](https://discourse.paraview.org/uploads/default/original/2X/6/64ad3ed39c5bd6284da0645e367eab2cd112a679.png)

Beat regards

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### Author: ![nicolas.vuaille](https://discourse.paraview.org/user_avatar/discourse.paraview.org/nicolas.vuaille/32/5873_2.png) [@nicolas.vuaille](https://discourse.paraview.org/u/nicolas.vuaille)
#### Post date: [March 1, 2022, 8:30am UTC](https://discourse.paraview.org/t/output-pressure-confficient-over-cylinder-surface/9091/2 "2022-03-01T08:30:45Z")

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You should probably use `Extract Surface`, maybe in combination of some `Clip`.

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### Author: ![xq520](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/x/43a26b/32.png) [@xq520](https://discourse.paraview.org/u/xq520)
#### Post date: [March 1, 2022, 2:44pm UTC](https://discourse.paraview.org/t/output-pressure-confficient-over-cylinder-surface/9091/3 "2022-03-01T14:44:16Z")

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Thanks for your replay.

Could you be more specific about solving this problem?

Best regards

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### Author: ![Abdelwahab\_Aiche](https://discourse.paraview.org/user_avatar/discourse.paraview.org/abdelwahab_aiche/32/14545_2.png) [@Abdelwahab\_Aiche](https://discourse.paraview.org/u/Abdelwahab_Aiche)
#### Post date: [June 5, 2024, 5:54pm UTC](https://discourse.paraview.org/t/output-pressure-confficient-over-cylinder-surface/9091/4 "2024-06-05T17:54:03Z")

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Hi man  
I need to your help please  
I want calculate Cp over four cylindre