Definition(s)
Critical Flow
fluid flow that is unstable, alternating between laminar and turbulent flow; Critical flow occurs at Reynolds numbers between 2000 and 4000.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Oil & Gas Drilling Glossary - IADCLexicon.org
fluid flow that is unstable, alternating between laminar and turbulent flow; Critical flow occurs at Reynolds numbers between 2000 and 4000.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards