John Bowling Posted December 9, 2022 Report Share Posted December 9, 2022 In Edit dialog: Tools > Enter barometric survey yields different resistances if applied as "linear resistance" or as "PQ survey" to multiple airways. As a test, apply the same parameters to two copied sets of airways (identical dimensions, lengths) as Enter barometric survey, choosing Apply As... linear resistance and PQ survey, respectively. For the "PQ survey" case, the Calculated Pressure Change seems to be divided by the number of airways, then applied to each branch as a Linear PQ Survey. This results in a low resistance (I think (geometrically?) proportionate to the number of airways the barometric survey was applied to). The airflow and total length are carried over correctly. Quote Link to comment Share on other sites More sharing options...
Martin Griffith Posted January 17, 2023 Report Share Posted January 17, 2023 Hi John, Thanks for the message. I gave it a test and I couldn't identify the problem. If you could send a screenshot of the error that would help. Quote Link to comment Share on other sites More sharing options...
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