==== AFT Impulse 7 (Version Date 2019.03.29) Release Notes ==== This file contains the changes that have been made to Impulse 7 *** Changes for Version Date 2018.11.14 *** None: Initial Release *** Changes for Version Date 2018.12.05 *** >> Changes to computation logic that could impact results << 1. Fixed unit conversion errors in the Estimated pump inertia calculation. >> Changes to data management that could impact results << 1. None. >> Changes that do not impact results << 1. Fixed a potential problem when the pump results are written to the .out file where data was written which is not applicable to the type of pump and transient mode. This did not affect the actual results. 2. Fixed an issue that prevented Translating Check Valve Force Balance models from being defined. 3. Fixed a Global Edit issue with Translating Check Valve Force Balance models. 4. Fixed an issue which could make steady state convergence difficult for Force Balance check valves which would close during steady state. 5. Fixed an issue when exporting output to Excel an error message pops up about a bad tab page name. 6. The reservoir in Impulse 7 now includes some finite tank functionality. Entering liquid level information, for a finite tank, in the transient tab would produce an error. This has been resolved. 7. Multiple fixes to the Excel Export Manager when handling graph exports. 8. Fixed an issue where pumps that were previously saved as positive displacement type then changed to centrifugal type and four quadrant data entry was attempted would not find a BEP value. *** Changes for Version Date 2019.01.02 *** >> Changes to computation logic that could impact results << 1. None. >> Changes to data management that could impact results << 1. Fixed a problem when splitting a pipe, the downstream elevation and pipe fitting losses (if specified) were not being kept. >> Changes that do not impact results << 1. Added the Visual Report Animation Feature. 2. Fixed an issue where models that were imported from Impulse version 6 or earlier could display the Pump Properties form improperly. *** Changes for Version Date 2019.01.28 *** >> Changes to computation logic that could impact results << 1. None. >> Changes to data management that could impact results << 1. Fixed a problem with the unit type used with PD pumps with transient flow data. 2. Fixed a problem exporting to Excel when running in Steady-State mode which would crash Impulse. >> Changes that do not impact results << 1. Added Reservoir pipe depth/elevation setting information to the Model Data defaults. 2. Changed Zoom behavior when objects are selected in the Workspace. 3. Fixed an issue when editing an annotation's text and then clicking 'Cancel': the text will still be changed in the annotation. 4. Enabled 'Export Force File' menu item when on Graph Results or Visual Report. 5. Fixed an issue where 'Copy Graph Image' and 'Record Animation' would not work right when the Windows Font Size is set to anything other than 100%. 6. Fixed an issue when duplicating an annotation: the 'pre-paste' window shows up behind the annotation. 7. Fixed an issue where some Pipe length values were not imported using the PCF Import. 8. Fixed an issue where Four Quadrant graphs could not be copied by using the "Copy Data" button command in the "Specify Four Quadrant Model" window. *** Changes for Version Date 2019.03.11 *** >> Changes to computation logic that could impact results << 1. Fixed an issue with Reservoirs that would cause an artificial transient if the ambient pressure was specified using an elevation table. 2. The Constant CdA loss model for Relief Valves was not working properly in Impulse 7. The issues have been corrected. >> Changes to data management that could impact results << 1. Fixed an issue that prevented running models when a REFPROP fluid was selected. >> Changes that do not impact results << 1. Minor bug fixes when overwriting Graph List items. 2. Fix for Profile Graphs when flow direction changes along a path (steady state). 3. Fixed an issue where transient events were not importing from a Fathom XTS file. 4. Made a minor change to the behavior of the 'Global Search' when searching for text items. 5. Fixed an issue with EPANET import for computers with different Regional Settings. *** Changes for Version Date 2019.03.29 *** >> Changes to computation logic that could impact results << 1. None. >> Changes to data management that could impact results << 1. CRITICAL: Starting in the October 2018 releases, an additional field was added to the Control Valve data. This was placed in the wrong area and had the potential to corrupt the data that followed. This has been fixed. Models that were opened in the affected releases should have the data for the Control Valves rechecked. 2. Fixed an issue where User-Specified Four Quadrant pump curves could be erased upon re-opening of the Specify Four Quadrant Model form. >> Changes that do not impact results << 1. Fixed a problem with Duplicate Special when duplicating pumps. 2. Fixed an issue with the Pre-paste object when handling large areas on the Workspace. 3. Fixed an Issue where Multi-Condition events were not triggering. 4. Fixed an issue where Pump Curves, in some cases, could not be drawn in the Pump Properties window after copying an existing Pump junction.