PyroSim 2014.1

What's New

This version fixes bugs related to support for FDS6 and HVAC.

This version of PyroSim is designed for FDS version 6.0.1 and Smokeview version 6.1.5. It uses version 1.6.0_45 of the Java VM.

Changes since PyroSim 2013.1.1220:

• Removed deprecated FDS5 quantity MASS_LOSS.
• The THERMOCOUPLE quantity can now only be used with devices.
• Fixed a bug that prevented some files created with PyroSim 2013.1.1122 (beta) from loading.
• Fixed incorrect unit for HVAC parameter COOLANT_SPECIFIC_HEAT — was j/kgK, now kj/kgK.
• Fixed incorrect unit for HVAC parameter FIXED_Q — was j/s, now kj/s.
• Fixed incorrect unit for HVAC parameter COOLANT_TEMPERATURE — was K, now C.
• Changed the default HVAC DUCT parameter ROUGHNESS from 0.0 m to 0.001 m. The new default helps to prevent numerical instability in problems that do not specify loss terms.
• Fixed a bug that made it possible to specify both molecular weight and formula for a species.
• Added support for parameter overrides in lumped species specification.
• Editing preferences will no longer trigger the modified status of the current model.
• In the Tree view, adding a subgroup under the Reactions group no longer causes a crash.
• Fixed a bug with HVAC device measurement quantities.
• Fixed a bug where the FDS6 PARTICLE_FLUX quantities were being called DROPLET_FLUX.
• Fixed a bug that caused incorrect import of surfaces with particle injection when DT_INSERT was not defined.

Changes in Patch 2014.1.0331

• Added support for LES parameter INITIAL_UNMIXED_FRACTION.
• Predefined species records will now only be added to the FDS input file as needed.
• All predefined species are now available in PyroSim by default (i.e. they don't need to be explicitly added).
• Removed support for temperature boundary condition settings (i.e. Heater/Cooler surface data) on burner surfaces.
• Quantity HRRPUA now useable only by devices.
• OPEN, MIRROR, and HVAC can no longer be set as the default surface.
• HVAC device labels that have no corresponding physical location will no longer be added at the origin.
• Fixed bug that could cause fuel chemistry data to be added to the FDS input file when using a predefined fuel.
• Fixed a crash in the material pyrolysis panel that occurred after deleting a material or species.
• Fixed a crash that occurred when importing particle injection surfaces that don't specify DT_INSERT.
• Fixed a bug that caused spray model ramp pressure units to be written written to the FDS input file as pascals rather than bars.
• Fixed bug that caused PyroSim to specify an active reaction after importing an FDS file without one specified.
• Fixed a bug where particle size distribution data was lost when loading legacy PSM files.
• Fixed a crash that occurred when loading legacy files with incorrect radiation absorption units.
• Fixed a crash that occurred when editing smoke detector models.
• Fixed a bug that caused heat of reaction and water vapor yield to be loaded incorrectly from PSM files created by PyroSim 2012.1 and earlier.
• Fixed incorrect units for enthalpy of formation in the Edit Species dialog.
• Fixed an bug that caused PyroSim to revert to FDS5 conventions when importing and exporting particle velocity.