Open Source C# Simulation Software

DWSIM is an open source, CAPE-OPEN compliant chemical process simulator for Windows, Linux and macOS systems. Written in VB.NET and C#, DWSIM features a comprehensive set of unit operations, advanced thermodynamic models, support for reacting systems, petroleum characterization tools and a fully-featured graphical interface. DWSIM Pro is a commercial sibling of DWSIM built on top of open-source software. It offers extended features, comes with private support, and is accessible in the cloud. Visit simulate365.com for details.

DIANNA (Diffraction Analysis of Nanopowders) is a free software developed to simulate atomic models of structures from an ensemble of nanoparticles and to calculate their whole X-ray powder diffraction patterns and the radial distribution function. The main objects of investigation are the particles whose coherent scattering domains do not exceed several nm. DIANNA is based on the ab initio method using the Debye scattering equation. This method makes it possible to obtain information on the atomic structure, shape and size of nanoparticles. It can be applied also to non-periodic materials or coherently ordered structures. How to use: 1. Unzip the archive. 2. Run the "Dianna_Startup.exe" file. 3. Use "Help" through the menu. Required: • Windows 7 or newer • Microsoft .NET Framework 4: www.microsoft.com/en-US/download/details.aspx?id=17851 (Web Installer, 1 Mb) www.microsoft.com/en-us/download/details.aspx?id=17718 (Standalone Installer, 48 Mb) • Microsoft Visual C+