==== AFT Fathom 7.0 (Version Date 2008.04.30) Release Notes ===== This file contains the changes that have been made to Fathom 7.0 *** Changes for Version Date 2008.02.22 *** None: Initial Release *** Changes for Version Date 2008.04.18 *** >> Changes to computation logic that could impact results << 1. This change does not affect results per se, but it does fix a problem that could prevent convergence. If modeling heat transfer, it was possible that a model would not converge on temperature if there were pipes which were non-flowing connected to a tee or branch which had other pipes which were flowing. This was fixed. 2. Fixed a problem where the losses for a detailed tee/wye that had flow coming in the branch and going out both straight-through pipes (or the opposite flow directions) were being set to zero. 3. Fixed a problem where during an XTS simulation where a transient was set on an Assigned Pressure and there were fixed flows in series a flow imbalance would occur at the branching points by the flows. >> Changes to data management that could impact results << 1. When using the XTS module and a pump with a fixed pressure or head rise model, and if the user is using a design factor or viscosity correction, the first time step calculation is correct but thereafter the design factor and/or viscosity correction to head rise gets multiplied twice for all subsequent time steps. This was fixed. 2. Fixed problem displaying the pipe heat transfer profile. The pipe outlet temperature was displayed correctly, but the others were set to the ambient temperature. 3. Fixed problem displaying BEP in the Pump Summary, it was always 0. 4. Fixed problem in Global Junction Editing where if only the database name was selected, the data was not applied, only the name which caused inconsistent data. >> Changes that do not impact results << 1. Fixed snap to grid problem when pipes or junctions were near an edge. 2. Fixed Workspace drawing anomaly when pressing the escape key while drawing a new pipe. 3. Was not displaying pulp and paper stock properties when using constant properties in System Properties. Fixed this. 4. Fixed printing problem for Graph Results which could cutoff part of a graph in certain cases. 5. Added a Caution message to the Output when user disabled either mass balance or energy balance in Solution Control. 6. Fixed display problem in Graph Results if a graph is made using the "Selected Solutions" tab and then another graph is made for a different tab. The x-axis labels were not being updated. 7. If cavitation occurred when using XTS and the time units in Output Control were other than "seconds" then the warning message would be incorrect as it would list cavitations time in seconds always rather than user time units. This was fixed. 8. In XTS models in some cases warning messages would not display for minimum values such as minimum pressure because the correct minimum was not being determined properly. This was fixed. 9. Allowed empty database files to be the target file in Database Manager. 10. Fixed problem in Visual Report where the junction output parameters were not shown. 11. Fixed problem importing Fathom 5.0 files that did not have efficiency data for a pump. 12. Fixed problem where the model data setting for pipes would not be set as the user default unless the Model Data Control window was first closed and reopened. 13. Fixed problem reselecting the previous selection when the selection was dissolved by clicking on the Workspace so nothing was selected. 14. Fixed a problem in the Fittings & Losses database the use of a comma in the type or subtype name would cause the data to become corrupted. 15. Databases are now automatically connected when added to the list of available databases. 16. Fixed a problem where detailed pipe data for non-cylindrical pipe in Model Data was not being displayed properly. 17. Added more information explaining what happened when a valid license was not found. *** Changes for Version Date 2008.04.30 *** >> Changes to computation logic that could impact results << 1. When data was reloaded from a past GSC model simulation and the GSC variable was a a junction that changed state (open/closed) from the initial point the flowrate results were not set correctly. This was fixed. >> Changes to data management that could impact results << 1. When a user-defined fluid was in an external database any changes to were not being saved. 2. When a goal used a density-based mass flowrate (like scfm) errors would be displayed and the incorrect actual goal was displayed when the model was reopened. The flows in the pipes and junctions were correct. >> Changes that do not impact results << 1. Fixed problem when using Fluid Groups and global pipe editing whereby the fluid group information could get corrupted causing an error when the model is run. 2. Changing units in the Heat Exchanger Summary would result in an subscript error. This was fixed.