Importance of fresh air in manometer tubing

John Michael Cimbala, Richard S. Mcyer, Todd B. Harman

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    It has been found that poor quality air inside manometer tubing can lead to significant errors when measuring very low pressure differences, such as in a low-speed wind tunnel. The obvious question is, how could the air inside the manometer tubing be so much denser than ambient air?. In the laboratory, the situation was remedied by blowing out each section of manometer tubing with a small hand pump. The dense gas in the manometer tubing was thus replaced by fresh air, and the rrors were completely eliminated. This is recommended by the authors as a preventative step prior to any pressure measurements, whenever new manomenter tubing is being used.

    Original languageEnglish (US)
    Pages (from-to)279-280
    Number of pages2
    JournalAIAA Journal
    Volume30
    Issue number1
    DOIs
    StatePublished - Jan 1 1992

    Fingerprint

    Manometers
    Tubing
    Air
    Pressure measurement
    Blow molding
    Air quality
    Wind tunnels
    Pumps
    Gases

    All Science Journal Classification (ASJC) codes

    • Aerospace Engineering

    Cite this

    Cimbala, John Michael ; Mcyer, Richard S. ; Harman, Todd B. / Importance of fresh air in manometer tubing. In: AIAA Journal. 1992 ; Vol. 30, No. 1. pp. 279-280.
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    Cimbala, JM, Mcyer, RS & Harman, TB 1992, 'Importance of fresh air in manometer tubing', AIAA Journal, vol. 30, no. 1, pp. 279-280. https://doi.org/10.2514/3.10914

    Importance of fresh air in manometer tubing. / Cimbala, John Michael; Mcyer, Richard S.; Harman, Todd B.

    In: AIAA Journal, Vol. 30, No. 1, 01.01.1992, p. 279-280.

    Research output: Contribution to journalArticle

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