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On the recordRead 14 Nov 202613 facts
DWSIM
Plans and prices
DWSIM MCP Server
Free
Headless DWSIM engine over MCP HTTP or stdio; default port 5901; no token by default
Read 14 Nov 2026 · dwsim.org
DWSIM Open-Source Core Edition
Free
Open-source core components only; source code available
Read 14 Nov 2026 · dwsim.org
DWSIM Patreon Edition
Priced on request
Open-source core plus Patreon Supporter extras; supporter extras can be tested, but saving simulations that use them requires active membership
Read 14 Nov 2026 · dwsim.org
On the record
- Accuracy disclaimer
- The project warns that results are approximate and users must validate them for their intended purpose.dwsim.org · read 14 Nov 2026
- AI assistant
- The built-in assistant can answer questions about flowsheets and generate Python and VB.NET snippets.dwsim.org · read 14 Nov 2026
- Data access
- The software provides access to over 120,000 phase-equilibrium datasets in the NIST ThermoML Archive.dwsim.org · read 14 Nov 2026
- Dynamic simulation
- DWSIM supports transient simulation with time-stepping integrators, controllers, and event scheduling.dwsim.org · read 14 Nov 2026
- Edition limits
- Several advanced features, including simultaneous and equation-oriented solvers, are Patreon Edition exclusives.dwsim.org · read 14 Nov 2026
- History
- DWSIM originated in 2004 from Excel VBA macros implementing PR EOS and a basic flash algorithm.dwsim.org · read 14 Nov 2026
- Integration
- DWSIM is CAPE-OPEN compliant and has CoolProp integration for pure fluids and incompressible mixtures.dwsim.org · read 14 Nov 2026
- License
- The project describes DWSIM as free and open source under GNU GPL v3.dwsim.org · read 14 Nov 2026
- Purpose
- DWSIM is a chemical process simulator for modeling steady-state and dynamic flowsheets.dwsim.org · read 14 Nov 2026
- Security
- The MCP server listens on all interfaces without a token by default; the download page advises setting a token on untrusted networks.dwsim.org · read 14 Nov 2026
- Thermodynamics
- It includes property packages such as Peng-Robinson, NRTL, UNIQUAC, Wilson, and UNIFAC.dwsim.org · read 14 Nov 2026
- Unit operations
- The simulator includes more than 35 unit operations, including columns, heat exchangers, reactors, and pumps.dwsim.org · read 14 Nov 2026
