# Simulation Output in pvd format

**URL:** https://discourse.paraview.org/t/simulation-output-in-pvd-format/4704
**Category:** ParaView Support
**Created:** [June 28, 2020, 2:52pm UTC](https://discourse.paraview.org/t/simulation-output-in-pvd-format/4704 "2020-06-28T14:52:13Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![dutta-alankar](https://discourse.paraview.org/user_avatar/discourse.paraview.org/dutta-alankar/32/13310_2.png) [@dutta-alankar](https://discourse.paraview.org/u/dutta-alankar)
#### Post date: [June 28, 2020, 2:52pm UTC](https://discourse.paraview.org/t/simulation-output-in-pvd-format/4704/1 "2020-06-28T14:52:13Z")

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Hi,

I’m writing an IO for a fluid dynamics code in C. Is there any specific guide that can help me dump my output fields of the simulations in pvd format directly from the C code? I couldn’t find much help and so decided to post this in the forum.

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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: [June 29, 2020, 3:23am UTC](https://discourse.paraview.org/t/simulation-output-in-pvd-format/4704/2 "2020-06-29T03:23:36Z")

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pvd is a wrapper for our XML formats, you can find the doc here : [https://www.vtk.org/VTK/img/file-formats.pdf](https://www.vtk.org/VTK/img/file-formats.pdf)