# How to solve a partial derivative equation (Navier-Stokes)
**URL:** https://discourse.julialang.org/t/how-to-solve-a-partial-derivative-equation-navier-stokes/92605
**Category:** Modelling & Simulations
**Created:** [January 6, 2023, 2:50pm UTC](https://discourse.julialang.org/t/how-to-solve-a-partial-derivative-equation-navier-stokes/92605 "2023-01-06T14:50:45Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Islam\_ZERROUGUI](https://discourse.julialang.org/u/Islam_ZERROUGUI)
#### Post date: [January 6, 2023, 2:50pm UTC](https://discourse.julialang.org/t/how-to-solve-a-partial-derivative-equation-navier-stokes/92605/1 "2023-01-06T14:50:45Z")
Hi everyone,
I ended up with the following equation, and I want to solve it for the pressure (P) and saturation (s). The two variables are in two dimensions rectangular form with a length of 1 cm and a width of 2cm.
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### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [January 6, 2023, 2:51pm UTC](https://discourse.julialang.org/t/how-to-solve-a-partial-derivative-equation-navier-stokes/92605/2 "2023-01-06T14:51:33Z")
The simplest might be to use NeuralPDE.jl
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### Author:  [@Islam\_ZERROUGUI](https://discourse.julialang.org/u/Islam_ZERROUGUI)
#### Post date: [January 6, 2023, 2:58pm UTC](https://discourse.julialang.org/t/how-to-solve-a-partial-derivative-equation-navier-stokes/92605/3 "2023-01-06T14:58:13Z")
Hi
I am so new to julia, so please if you have some examples I can use I will be so thankful.
Thanks in advance
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### Author:  [@xtalax](https://discourse.julialang.org/u/xtalax)
#### Post date: [January 6, 2023, 2:59pm UTC](https://discourse.julialang.org/t/how-to-solve-a-partial-derivative-equation-navier-stokes/92605/4 "2023-01-06T14:59:57Z")
Try the [tutorial](https://docs.sciml.ai/NeuralPDE/dev/tutorials/pdesystem/) in the docs đŸ™‚