compile udf in visual studio

step 1: set environment variables:

https://www.cfd-online.com/Forums/ansys/222139-method-set-environment-variables-linking-ansys-fluent-19-1-visual-studio-1-a.html

Watch video on how to compile :

https://cfd.ninja/dynamics-mesh/

So, to those who starts from ANSYS installation, the main step will be:

1. Install ANSYS

2. Install Microsoft Visual Studio 2017. Make sure to select the Windows options (see the above youtube video).

3. Set the environmental variables.

4. Run Fluent from x64 Native Tools Command Prompt for VS 2017

So, it is all about setting the correct environment variables:

Start>Control panel>System>Advance system settings>Advanced>Environment Variables> System Variables> PATH

In the PATH> variable value write: P.S. Adjust this entry to your system concerning the installation directories!

C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools;

C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC;

C:\Program Files\ANSYS Inc\v182\fluent\ntbin\win64;

the problem still exists after all these changes in the path variable!!! go back again to the PATH and confirm PATH environment variable has the following settings at the BEGINNING: %SystemRoot%\system32;%SystemRoot%, see below the complete value.

%SystemRoot%\system32;%SystemRoot%;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC;C:\Program Files\ANSYS Inc\v182\fluent\ntbin\win64;

But, wait the problem is still there .......WHAT, OH NO?

OK, now restart your computer

BINGO, the problem has been solved

cd C:\Program Files\ANSYS Inc\ANSYS Student\v193\fluent\ntbin\win64

https://www.youtube.com/watch?time_continue=248&v=xt2hnE9_LdM&feature=emb_title

cd in command promot to the location where fluent is installed:

C:\Program Files\ANSYS Inc\ANSYS Student\v193\fluent\ntbin\win64