Build 5031 was released for Windows, Linux and OS X. This is a major release with lots of new features and enhancements. DWSIM is an open-source chemical process simulator with advanced thermodynamic models and CAPE-OPEN support. http://sourceforge.net/projects/dwsim/
Build 4534 was released for Windows (.NET), Linux and Mac (Mono). This is a bugfix release. DWSIM is an open-source chemical process simulator with advanced thermodynamic models and CAPE-OPEN support. http://sourceforge.net/projects/dwsim/
Build 4503 was released for Windows, Linux and Mac. This build adds new flash algorithms and a new property package. A portable version for Windows is now available. DWSIM is an open-source chemical process simulator with advanced thermodynamic models and CAPE-OPEN support. http://sourceforge.net/projects/dwsim/
Build 4466 was released for Windows (.NET), Linux and Mac (Mono). This build adds features and fixes some bugs. DWSIM is an open-source chemical process simulator with advanced thermodynamic models and CAPE-OPEN support. http://sourceforge.net/projects/dwsim/
DWSIM v2.1 Build 4452 was released for Windows, adds a Petroleum Assay Manager and PFD Zoom All/Pan features among others. DWSIM is an open source chemical process simulator. http://sourceforge.net/projects/dwsim/
DWSIM v2.1 Build 4438 was released (Win/Linux/OSX). This build fixes some bugs and enhances the Adjust Logical Operation. DWSIM is an open source chemical process simulator. http://sourceforge.net/projects/dwsim/
DWSIM v2.1 Build 4416 is out. DWSIM is an open source chemical process simulator. http://sourceforge.net/projects/dwsim/
New features: PRSV2-VL Property Package, includes ChemSep 6.90 installer w/ 400+ compound database
DWSIM v2.1 Build 4410 Beta is out. DWSIM is an open source chemical process simulator. http://sourceforge.net/projects/dwsim/
New features: Data Regression utility and PRSV2 Property Package
Build 4089 for Mono is now available for download. The Mono Edition is a slightly less featured version of DWSIM, but allows DWSIM to run on Linux and Mac systems.
Build 4080 for .NET and 4081 for Mono are now available for download.
The Mono Edition of DWSIM is a slightly less featured version of DWSIM, but that's for a good reason: you can now run DWSIM on Linux machines using Mono.
Both builds (.NET and Mono) come with a couple of new features: scripting support for pre- and post- Unit Op calculations and a model for Shell and Tube Heat Exchanger rating. I also noticed some problems with the IO Flash algorithm and added a checkbox to disable "Fast Mode" for it. It just enables the calculation of a damping factor on each iteration to improve convergence robustness.
This release includes a German translation by Rainer Göllnitz.
This release includes the interface for external plugin development (specific documentation to come later) and updates to rigorous column solvers (IO and SC). Changelog:
Minor fixes and the new Lee-Kesler-Plöcker Property Package. Changelog:
Build 3840 introduces the Gibbs Reactor and comes with important changes in the thermodynamics framework. Changelog:
Build 3676 fixes a lot of bugs and adds important features to DWSIM. What's new:
Updated documentation, samples and source code in VB.NET are also available for download in the "Files" section.
DWSIM 1.6 Beta is now available for download. Here is the list of changes since build 3399:
[NEW] Added Spanish GUI translation (many thanks to Abad Lira and Gustavo León!)
[NEW] Added a Multivariate, Constrained Optimization utility
[NEW] Added a Sensitivity Analysis utility supporting up to 2 independent variables
[NEW] Added "command-line run mode" (read the documentation for more details)... read more
DWSIM's Blog was updated with a quick preview of the new features which will be available in the next build. Visit http://dwsim.inforside.com.br/blog for more details.
This one was fast. I just found an error in the calculation of the ideal gas enthalpy/entropy for ChemSep/CheResources components that affects all unit ops' heat balances, so it just couldn't wait. Other fixes were included as usual.
I also created a new simulation file reproducing the PS Azeotropic Distillation (Methanol/Acetone) case built by Harry Koojiman for the COCO simulator.
Go to the download page (https://sourceforge.net/project/showfiles.php?group_id=233626) to get the files.
This updated v1.5 build fixes some bugs reported by users and others found during testing sessions. New features include:
Component volumetric flow /fraction information in Material Streams;
The possibility to choose how the liquid density should be calculated with EOS-specific Property Packages - use the EOS itself or the Rackett equation. This decision directly affects the calculation of partial volumes (used for the calculation of the volumetric fractions/flows).
DWSIM Build 3377 was released yesterday and adds important features to the Calculator, like 'abort calculation' and 'recalculate flowsheet'. Some bugs were also fixed, as usual.
Because of the changes needed to implement the new features, the interface became even more responsible during calculation. Check it out!
DWSIM v1.5 beta build 3372 is available for download. This is just a maintenance release with some bug fixes and optimizations. Most important corrections are in the calculation of viscosity and surface tension of liquid mixtures. Also, the components that are missing some important data (like acentric factor and critical compressibility) in the CheResources database are now marked in red for your convenience.... read more
DWSIM 1.5 Beta is now available for download. Here is the list of changes since version 1.4:
DWSIM version 1.4 is now available for download. Major changes include the addition of three new unit operations (Equilibrium Reactor, Shortcut Column and Heat Exchanger [basic]) and three utilities (PSV/Vessel sizing and Spreadsheet).
The documentation is not up-to-date (lost my Lyx installation), so it will probably be updated only in the 1.5 version release, which shouldn't take too long and will include a Rigorous Column unit operation.... read more
The latest SVN update contains important bug fixes to the True Critical Point utility. In case you haven't noticed, Prof. Cartaxo also included a basic implementation of the Heat Exchanger Unit Operation. You can also find among the Property Packages an initial implementation of Michelsen's stability algorithm, which, hopefully, will evolve to a full Multiphase Property Package for DWSIM. Stay tuned!
DWSIM version 1.3 is now released along with documentation in English and Portuguese Brazilian languages. You can also find in the Downloads page an example simulation (Cavett's problem) in order to view some of DWSIM's main features.
This release is the first to be hosted on SourceForge and is licensed under the GPL v3 license. The source code can be compiled with Visual Basic 2005 Express Edition (a free Visual Studio VB.NET-specific version).... read more