=== AFT Impulse Version 9 (2022.11.11) (Build 1108) === --- Changes that affect results --- 1. Fixed an issue where certain junctions (Area Change, General Component, Orifice, Venturi, Screen, Bend) with a user specified loss of zero and an active cavitation model of DGCM would not update downstream conditions. 2. Fixed a problem where the error message for cavitation at intermediate pipe elevation points was shown, but the pressure value was 0. 3. Removed the restriction of having in-line Relief Valves in series. 4. Fixed a problem with the output messages when the the regional settings used a comma as the decimal separator. This comma would be replaced by a blank space. This problem was introduced in June 2022 and corrected in September 2022 5. Fixed an issue where gas accumulator cap types other than spherical and flat could crash the solver for some combinations of tank height and tank diameter. 6. When a pump junction represented a number of series pumps, the efficiency during the transient was not divided by the number of series pumps when it was being checked and would generate a warning that it was greater than 100%. This was fixed. 7. Fixed an issue affecting only Vacuum Breaker type Air Valves with an Inlet Cracking Pressure less than the Gas External Pressure. The Air Valve was not opening again when it should have. 8. Fixed several reporting issues with Sprays where some connecting pipes were closed or had opposite flow directions. 9. There was a problem plotting intermediate pipe elevations for multi-scenarios when the number of segments is different, which was fixed. --- Changes that affect interface --- 1. Fixed an issue that could cause child scenario output to be cleared unexpectedly after visiting Sectioning in Analysis Setup. 2. PFA Module: Fixed an issue that caused an Analysis Setup error when the Pulse Location junction was not yet set or deleted and the pool of valid Pulse Location junctions in the model had only Junction Numbers that were greater than the absolute number of junctions present in the model. 3. Fixed an issue that could cause Relief Valve Pressure Units to be reset to default after opening the property form in specific configurations. 4. Fixed problem switching the periodic pump flow type when there were valid pump characteristic values. 5. "Animate with Solver" for profile graphs did not work correctly if a Zero Length Connector was present in the flow path, this has been fixed. 6. A profile animation could not be created if Zero Length Connectors existed in the flow path, this has been corrected. 7. Fixed a problem when morphing junctions where, depending on the junction types, some data would be lost. --- Other changes --- 1. None. === AFT Impulse Version 9 (2022.07.28) (Build 1106) === --- Changes that affect results --- 1. Fixed issue where the user was able to rerun a model that was changed by a parent scenario without doing necessary resectioning. 2. Fixed an issue with controlled pumps set to trip not updating speed correctly. 3. Fixed an issue that caused the Output Warnings to fail while loading if any triggered warnings referenced objects with the pipe symbol ("|") as part of their name. 4. Fixed an issue that caused User Additional Losses to not be written to the model file appropriately. User Additional Losses would be erased when re-opening the file. 5. There was a problem when changing the cavitation model to DGCM where the Psi and Void Fractions would be auto-filled but using English formatted values. When a comma is used as the decimal symbol these values were incorrect and could result in strange behavior. 6. Fixed a problem with the Spray Discharge junction “K (Fire Sprinkler)” model which was connected to two or more pipes (an inline arrangement) and the user input the “Number of Sprinklers” as 2 or more. This would result in the predicted flow out of the sprinkler to be too high. 7. Fixed a problem when using XTS when sprays are initially closed and then opened where the solver would fail to converge. 8. Fixed an issue where very large vapor volumes (many times a section volume) could incorrectly get fixed at constant values. 9. A bug has been fixed where Impulse models applying ATKF to the General Component, Orifice, Bend, Venturi, Screen, or Area Change junctions could indicate lower-than-expected pressure results throughout the full transient simulation, if the steady-state solution initializes with a laminar solution. --- Changes that affect interface --- 1. Fixed an issue that caused Output Control Format files to not be written properly. 2. Fixed an issue where the graph animation was not working properly for profile plots using 'animate solver'. 3. Fixed an issue that prevented Pump Total Rotating Inertia value from being overwritten after it had been entered for the first time. 4. Fixed a problem graphing force sets if the file was not written every time step. 5. Fixed problem where the Sectioning Panel is active while in Steady Only mode which could result in unit conversion messages. 6. Corrected Pump Form graph tab to say "Head Loss" when PAT is selected. 7. Added Pipe Sectioning parameters to Scenario Comparison Tool. 8. Fixed an issue that prevented ASME Steam/Water fluids from being defined while SSL was in use. --- Other changes --- 1. Put in a fix for the Chempak eLicense check on model run === AFT Impulse Version 9 (2022.05.12) (Build 1102) === --- Changes that affect results --- 1. Fixed a problem when inserting a scenario above another one and then making changes to the original scenario. This would not delete the output of lower scenarios. 2. Fixed a problem using Global Edit on non-cylindrical pipe where the changes were not being made. 3. Fixed issue where critical warning for air volume was being displayed incorrectly. 4. The cracking and steady-state pressures were not displaying in the Warnings section for the Air Valves which was fixed. 5. Fixed an issue that could cause output to not be cleared upon closing the model after choosing No when prompted to save. 6. Updated Excel Export Manager to report the results for values like specific volume that used to report as N/A. 7. Fixed an issue where Multi-scenario graphs with transient and steady scenarios displays incorrect steady state values. 8. Fixed an issue where "Save All Results to PDF" from Batch Run only printing junction summaries to PDF. 9. Fixed an issue that prevented Warnings from being printed properly. 10. Fixed a problem when changing the default fluid while using variable fluid properties. The pipes that were using the original fluid retained the data, but the fluid name was incorrect. If the pipe Property window was opened, the fluid would become User Specified and loose connection to the intended fluid. 11. SSL Module: Fixed an issue where models could be run while Sliding Friction Coefficient value was not yet entered in Slurry Definition, in cases where it should have been required to run. 12. Fixed an issue that caused the Pump Startup Transient Model to be enabled in a case where the model was not valid. 13. Fixed an issue that prevented ASME Steam/Water fluids from being defined while SSL was in use. 14. Fixed an issue that allowed users to open Properties Windows while a model is running causing errors. 15. Fixed an issue where internal relief valves with rate limits were shutting faster than their rate limits in some cases of cavitation at the relief valve. 16. Fixed a problem writing data for the Weir junctions to the Output file. This caused the Output file to become invalid and deleted when the results were displayed. --- Changes that affect interface --- 1. Fixed an issue that prevented annotations from translating on the workspace when Arrange->Scale/Flip Workspace was used. 2. Fixed several language phrases that were not translating properly. 3. Changed Output Grid right-click logic to allow quick graph plots in more cases, such as columns with some numeric and some N/A data. 4. Updated the Startup window's Model Preference's pane to require the user to click "Remember My Preferences and Hide" in order to apply the selection in the Units section. 5. Fixed an issue that caused Output to clear without warning if junctions were moved on the Workspace with ctrl+click 6. Added ability to Globally Edit Pump Junction Transient Model and Curve Used in Simulation independently. 7. Fixed an issue where Moving time steps in Transient Output resizes text size. 8. Changed the behavior of the Scenario Tree in the Quick Access Panel. The tree will now keep its collapse/expand state for all nodes after a 'clone', 'create child', or 'delete' operations. 9. All pipes are now shown in the Profile graph selections when animate using Output is used. The pipes that do not have all stations written to the output file are marked with an * to indicate such. An error is given if one of these pipes is selected to be shown in the graph. --- Other changes --- 1. Fixed the CII import to allow for file version changes 2. Fixed "Generate Force Names" button 3. Fixed an issue where the "Batch Run Status" form ends up behind the main application form. 4. Exchanged printing tools being used to the same as those being used in other AFT applications like AFT Fathom 12. === AFT Impulse Version 9 (2022.03.01) (Build 1100) === --- Initial Release ---