# How to calculate the shear stress od the blood volume, not only the WSS?

**URL:** https://discourse.paraview.org/t/how-to-calculate-the-shear-stress-od-the-blood-volume-not-only-the-wss/14871
**Category:** ParaView Support
**Created:** [June 18, 2024, 2:44am UTC](https://discourse.paraview.org/t/how-to-calculate-the-shear-stress-od-the-blood-volume-not-only-the-wss/14871 "2024-06-18T02:44:15Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Basant\_Regmi](https://discourse.paraview.org/user_avatar/discourse.paraview.org/basant_regmi/32/14533_2.png) [@Basant\_Regmi](https://discourse.paraview.org/u/Basant_Regmi)
#### Post date: [June 18, 2024, 2:44am UTC](https://discourse.paraview.org/t/how-to-calculate-the-shear-stress-od-the-blood-volume-not-only-the-wss/14871/1 "2024-06-18T02:44:15Z")

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I was trying to calculate the shear stress of the blood volume inside the artery, how can I do the calculation in ParView?

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### Author: ![Francois\_Mazen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/francois_mazen/32/6483_2.png) [@Francois\_Mazen](https://discourse.paraview.org/u/Francois_Mazen)
#### Post date: [June 19, 2024, 6:49am UTC](https://discourse.paraview.org/t/how-to-calculate-the-shear-stress-od-the-blood-volume-not-only-the-wss/14871/2 "2024-06-19T06:49:59Z")

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Hi @Basant_Regmi

could you please provide detail about the input data? and ideally share this data?

Best,  
François

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### Author: ![Basant\_Regmi](https://discourse.paraview.org/user_avatar/discourse.paraview.org/basant_regmi/32/14533_2.png) [@Basant\_Regmi](https://discourse.paraview.org/u/Basant_Regmi)
#### Post date: [June 21, 2024, 3:45am UTC](https://discourse.paraview.org/t/how-to-calculate-the-shear-stress-od-the-blood-volume-not-only-the-wss/14871/3 "2024-06-21T03:45:39Z")

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This is a steady state blood flow simulation and the solver provides the Wall shear stress but I also need the shear stress of the blood volume as well, I have attached the vtk file below,  
[https://drive.google.com/file/d/1aGndj\_xZ6DpLm0A7z7MwEJhLlppxUyHI/view?usp=sharing](https://drive.google.com/file/d/1aGndj_xZ6DpLm0A7z7MwEJhLlppxUyHI/view?usp=sharing)