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Either the vertical-flow or the horizontal-flow equations can be used to predict performance for annular flow, but both of these families of equations require the conduit inside-diameter.
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www.eng-tips.com/faqs.cfm?fid=1142
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How does one compute the annular flow rate given the area? Assume 35 psi and water (@ room temp) as the fluid. Example: I have a piston within a cyclinder. The annular area between the piston and the cylinder is .091 in^2.
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www.eng-tips.com/gviewthread.cfm/lev2/16/lev3/58/pid/37...
www.eng-tips.com/gviewthread.cfm/lev2/16/lev3/58/pid/378/qid/52372
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Segregated flow is further divided into stratified flow, wavy flow, and annular flow. Intermittent flow consists of plug and slug flow. Distributive flow occurs when the gas and liquid are well blended. At higher velocities, froth flow can occur.
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www.pe.utexas.edu/2phaseweb/flowtwo.html
www.pe.utexas.edu/2phaseweb/flowtwo.html
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In two-phase pipe flow of immiscible liquids, the annular flow pattern with the thicker fluid surrounded by the thinner one, is commonly observed when the conditions are such that both fluids form continuous phases.
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www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-7...
www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-73862001000400010
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This project and the resulting deliverables will enable assessment of the cement pulsation technology to mitigate annular flow after cementing, and provide solid, fact-based information to determine this technology as a "best available and safest technology.
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www.mms.gov/tarprojects/539.htm
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Determination of flow and intensity distribution is critical in UV annular reactors since they affect the pattern and effectiveness of disinfection.
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ift.confex.com/ift/2003/techprogram/paper_17676.htm
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Many patents exist for inflow control devices being used to provide equalized inflow into a well. These patents describe this equalized inflow being used to avoid water and gas coning. ... This text was extracted from a Microsoft Word document. ... This is the abbreviated version, containing approximately 100% of the total text.
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www.priorartdatabase.com/IPCOM/000030256/
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The Interfacial Stability of a Core-Annular Flow in a Corrugated Tube ... A two-fluid core-annular flow consists of two immiscible fluids flowing concurrently in a tube or pore, where one (the annular) wets the tube wall and surrounds the other (core).
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www.nd.edu/~iutam/iii8.html
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Using modeling techniques that simulate the motion of non-Newtonian fluids, e.g., power law, Bingham plastic, and Herschel-Bulkley flows, this book presents proven annular flow methodologies for cuttings transport and stuck pipe analysis based on detailed experimental data obtained from highly deviated and horizontal wells.
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www.knovel.com/web/portal/browse/display?_EXT_KNOVEL_DI...
www.knovel.com/web/portal/browse/display?_EXT_KNOVEL_DISPLAY_bookid=1261
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