Discussion Overview
The discussion revolves around the distance required for fluid to achieve fully developed flow past an orifice plate pressure meter, specifically addressing the commonly cited range of 20 to 40 times the diameter of the orifice. Participants explore standards and specifications related to this topic.
Discussion Character
- Technical explanation
- Debate/contested
Main Points Raised
- One participant questions the validity of the 20 to 40 diameters figure, suggesting that a standard of 15 diameters of the pipe ID is more appropriate, depending on the beta ratio.
- Another participant seeks clarification on the source of the 15 diameters standard and expresses interest in understanding the factors that contribute to this specification.
- A participant provides links to ASME specifications that are relevant to the discussion, indicating that there are multiple sources for flow criteria, including variations from other organizations.
Areas of Agreement / Disagreement
Participants do not reach a consensus on the appropriate distance for fully developed flow, with differing views on the relevance of the 20 to 40 diameters figure versus the 15 diameters standard.
Contextual Notes
The discussion highlights the dependence on the beta ratio and the lack of clarity regarding specific tables or sources that define the standards mentioned.