Gas-Liquid RO

Restriction Orifice Calcs

$0.99 · Designed for iPad

Gas-Liquid RO calculates sizes and flowrates for restriction orifices for gases (Natural Gas, Air, Nitrogen) and liquids (Crude Oil, Water, MeOH, MEG, DEG and TEG) Gas-Liquid RO calculates gas and liquid restriction orifice sizes and flowrates based on R. W. Miller's "Flow Measurement Engineering Handbook". For gases this means that sonic velocity (critical flow) exists at the orifice throat, and further decrease in the downstream pressure will not increase the mass flow rate. For liquids, choked flow occurs when the orifice decreases the downstream pressure to below the liquid vapor pressure, at that point the liquid will partially flash into bubbles of vapor. If vapor pressure is less than downstream pressure (non-choked flow), the pressure drop is calculated based on empirical equations used for control valves.

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Updated with Xcode 26. Bug fixes.

The developer, Bjarne Berge, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    The developer has not yet indicated which accessibility features this app supports. Learn More

    • Seller
      • Bjarne Berge
    • Size
      • 962.6 KB
    • Category
      • Productivity
    • Compatibility
      Requires iOS 15.6 or later.
      • iPhone
        Requires iOS 15.6 or later.
      • iPad
        Requires iPadOS 15.6 or later.
      • iPod touch
        Requires iOS 15.6 or later.
      • Mac
        Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.0 or later.
    • Languages
      • English
    • Age Rating
      16+
    • Copyright
      • © Norcraft