Venturi Tube Question: Help Solve & Find the Right Answer

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SUMMARY

The forum discussion centers on a Venturi tube calculation, specifically part 3bii), where the user consistently arrives at an answer of 3.7907E-03 instead of the expected 3.95E-03. The discrepancy of approximately 5% raises concerns about potential rounding errors in the calculations. A critical point highlighted is the necessity of specifying units in calculations to ensure accuracy and completeness.

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  • Familiarity with dimensional analysis and unit conversion
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Students and professionals in engineering, particularly those studying fluid mechanics, as well as anyone involved in calculations related to Venturi tubes and fluid flow measurements.

traceurrr
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Hey guys. I can't figure out part 3bii) of this Venturi Tube Question.

The answer I keep getting is 3.7907E-03 but it should be 3.95E-03. I'm definitely missing something but can't figure out what. I'm out by about 5%, could it just be down to rounding errors?

Question and my working is shown in the attached pictures.

Question:
attachment.php?attachmentid=262177&d=1389478205.jpg


Attempted Answer:
attachment.php?attachmentid=262178&d=1389478300.jpg


Would really appreciate any help. Thanks!
 
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What units are you using? Your calculations are not complete unless you indicate your units.
 

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