| Applies To | |||
| Product(s): | PULS | ||
| Version(s): | all | ||
| Environment: | N/A | ||
| Area: | Warnings & Errors | ||
| Subarea: | |||
| Original Author: | Bentley Technical Support Group | ||
The following is a list of typical errros and solution to resolve.
PULS Errors:
1. INPUT ERROR Message
INPUT ERROR - Nodes have different fluid IDs for element XX
Fluid IDs can change at two or three ports
or at centrifugal compressors.
Try updating element information using ALT-M.
Answer:
Reviewing the definitions listed (two or three ports) changes to the Fluid ID can only occur at one of the 3 following locations without incurring this error message seen above.
2-port element (e.g., reducer, expander, elbows)
3-port element (tee or source node)
centrifugal compressors
Example: for a given model the fluid ID is changed between a volume element #28 and pipe run element #29. Because of the Volume element element #28 is not one of the 3 items listed above; changing the temp in element #29 affects the shared node point between element #28 and element #29. Thus causing the error message to be displayed.
However, the program only looks at changing the temperature between 2 pipe runs as a warning instead of an error as shown above. The user can decide to accept this as Ok modeling technique by ignoring the warning, or do something about the warning and change the model in some form.
See online help> Contents Tab> Bentley Puls> Comparison To experiments> NACA Test> modeling the mufflers for different modeling techniques.
To convert the error message to a warning, model coul insert a new short pipe element and change the fluid ID between the pipe elements instead at the Pipe / volume node point . Again, this would produce a warning instead of an error.
However, to fix the model correctly so no warnings are displayed, need to change the modeling technique for applying Fluid ID's to not cause such warnings/errors or different pipe routing/elements to get rid of the volume element completely.
The choice is up to the user.
See Also
External Links
Bentley Technical Support KnowledgeBase
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