Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Modeling Subarea: Original Author: Bentley Technical Support Group Comments, Questions, and Answers: Item #1: How to model fluid density in AutoPIPE? Answer: Using AutoPIPE V8i 09.06.xx.xx, a user can input the contents of pipe density value on the Pipe Properties dialog screen / Input grid: Also important to consider that fluid density changes with temperature. AutoPIPE has a feature on the Load Static Analysis grid where the user can provide a "Fluid Density Factor" per each analysis set. This factor is multiplied by the "Specific gravity of contents" value for all pipe properties in the model for that analysis set. Define separate analysis sets for each temperature case and modify the fluid density factor as needed. Note: Can the fluid density be zero (0.00) or blank? Yes, this is OK. One reason to set the density factor = 0 would be to analyze the piping system in a installed but not operating condition. Another words, this would help users to analyze their model with different states of fluid (no fluid [installed], high temperature, high pressure, etc.) at the analysis level without having to change individual content specific gravity. The 0.0 value of fluid density factor is inclusive of 0.0 value and it does not cause any known problems with any AutoPIPE calculations. See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!
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