There was a download of AULOS 5.0 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free program is an intellectual property of Hydra Software Ltd.
This PC software is suitable for 32-bit versions of Windows 7/8/10/11. AulosRun.exe is the common file name to indicate this program's installer. The most popular version among the software users is 5.0. We recommend checking the downloaded files with any free antivirus. The software relates to Photo & Graphics Tools.
From the developer:
AULOS is an advanced hydraulic modelling system with uses in urban drainage, flood management, and hydro-electric generation. This app offers unique features which allow it to work with single seamless models of networks of open channels and pipes, and to model complex situations.
You may want to check out more software, such as Riptide, Win4D Advance or Abalone, which might be similar to AULOS.