# Unit normal Vector Fluid Interface

**URL:** https://discourse.paraview.org/t/unit-normal-vector-fluid-interface/7316
**Category:** ParaView Support
**Created:** [May 28, 2021, 9:46am UTC](https://discourse.paraview.org/t/unit-normal-vector-fluid-interface/7316 "2021-05-28T09:46:10Z")
**Posts on this page:** 1
**Showing post:** 7

<div class="post-metadata">

### Author: ![M\_M](https://discourse.paraview.org/user_avatar/discourse.paraview.org/m_m/32/6573_2.png) [@M\_M](https://discourse.paraview.org/u/M_M)
#### Post date: [May 28, 2021, 1:43pm UTC](https://discourse.paraview.org/t/unit-normal-vector-fluid-interface/7316/7 "2021-05-28T13:43:59Z")

</div>

I wasn’t aware that I could simply run without installing.

> [@Install Paraview 5.8](https://discourse.paraview.org/t/install-paraview-5-8/4148/2):
>
> Welcome to the community, Victor! You probably have some link to system ParaView that you are finding. I would recommend the following: Download a new version of Paraview from the [paraview.org](http://paraview.org) website. Untar this. cd to the bin directory. Run as follows: ./paraview. This will run in the bin directory, rather than the first “paraview” that is found in your path. Alan

I have managed to get ParaView 5.9.1 but still am unable to see the normal in Vectors drop down.

 ![Screenshot 2021-05-28 143950](https://discourse.paraview.org/uploads/default/original/2X/f/fda2b58181ee275123f457d8740300d212a05ca4.jpeg)

I appreciate your help @mwestphal

---

_[View the full topic](https://discourse.paraview.org/t/unit-normal-vector-fluid-interface/7316)._