News

Water Spray Interaction with Dense Gas Clouds

May 7, 2012
Submission by: Robert N. Meroney, PhD. Wind Engineering Software, and Civil and Environmental Engineering, Colorado State University, Fort Collins, CO., USA Water spray curtains can provide an effective and rapid dilution mechanism for low lying dense clouds.  Frequently such clouds are released as a result of a chemical manufacturing, storage or gas transportation accident. Extensive field and laboratory tests have been performed to determine how well water curtains can mitigate actual spill conditions.  Numerical methods are often proposed to provide system design or timely response information, but most of these models reduce mathematical and computational complexity by integrating the equations of motion over volumes, sections or depths which provides computational speed but often sacrifices mixing detail and typically presume the use of empirical entrainment relationships.  Read More...

PyroSim 2012.1.0430

April 30, 2012
This is a maintenance release of PyroSim 2012. This version includes two bug fixes that make PyroSim more reliable when loading and importing models. Read More...

PyroSim 2012.1.0423

April 23, 2012
This is a major release of PyroSim. This version adds import support for Autodesk DWG files and improves import support for DXF files. This version also adds a suite of new visual editing features. Highlights include: precise keyboard entry; pushing and pulling for selected object faces; surface "painting" tools for obstructions and vents; and improved snapping against meshes, objects, and angle constraints.  Read More...

PyroSim 2012.1.0312 (Beta)

March 14, 2012
This is a beta release for PyroSim 2012. Major changes include an improved CAD import system (now supporting DWG and 2D geometry snapping) and improvements to geometry manipulation tools. Read More...

PyroSim 2011.1.1409

February 9, 2012
This maintenance release fixes a bug that prevents Smokeview from displaying simulation geometry in the CAD (GE1 file) view. Read More...

PyroSim 2011.1.1219

December 19, 2011

This maintenance release contains several bug fixes. Read More...

PyroSim 2012 Development Underway

December 8, 2011
Work is underway on the next version of PyroSim — PyroSim 2012. The release date is tentatively scheduled for some time in March 2012. The major noteworthy features are: Support for FDS 6 Improved tools for drawing and editing geometry Support for HVAC network modeling in FDS Improved CAD file import, including DWG format files Automatic partitioning of meshes for ... Read More...

PyroSim 2011.1.1114

November 14, 2011

This release fixes two bugs related to PyroSim geometry. Read More...

PyroSim 2011.1.1103

November 3, 2011

This release contains improvements and bug fixes for internationalized versions of PyroSim. Read More...

PyroSim 2011.1.1031

October 31, 2011

PyroSim now includes support for running FDS simulations on a cluster (i.e. simulations can be run using multiple computers).  Read More...