Flow visualization through metal enclosures with neutron radiography.

John Michael Cimbala, D. Sathianathan, S. A. Cosgrove

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Abstract

    Many practical fluid flow problems involve flow inside metal shrouds (valves, combustors, boilers, turbomachinery, etc.) where visual access is not available. For flows under extreme pressure or heat, glass or transparent plastic can not be used; a flow visualization technique which permits visualization through metal containers is needed in these cases. Since neutrons can penetrate metal casings, neutron radiography has been developed for application to fluid flow visualization. This technique involves imaging of neutron opaque tracer materials, such as solid or fluid particles or streaklines, as they convect in neutron transparent ambient fluids. Surface flow visualization is also possible by using neutron opaque tufts. An extension of the surface tuft technique has also been developed, enabling the visualization of flow patterns away from solid surfaces. Presented here is a summary of the various flow visualization techniques developed in the laboratory, along with examples which illustrate how these techniques may be applied to practical fluid flow problems. These include flow over a circular cylinder, the recirculation pattern formed by a jet exhausting into a tank, and the flow pattern inside a rotating automotive torque converter. (A)

    Original languageEnglish (US)
    Title of host publicationFLOW VISUALIZATION - 1989. PAPERS PRESENTED AT THE WINTER ANNUAL MEET. OF AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SAN FRANC
    PublisherNew York, U.S.A., American Society Mechanical Engineers
    Pages77-80
    Number of pages4
    Volume85 )
    ISBN (Print)0791804208, 9780791804209
    StatePublished - Jan 1 1989

    Fingerprint

    Neutron radiography
    Flow visualization
    Enclosures
    Neutrons
    Flow of fluids
    Metals
    Flow patterns
    Visualization
    Torque converters
    Fluids
    Turbomachinery
    Circular cylinders
    Combustors
    Containers
    Boilers
    Plastics
    Imaging techniques
    Glass

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

    Cite this

    Cimbala, J. M., Sathianathan, D., & Cosgrove, S. A. (1989). Flow visualization through metal enclosures with neutron radiography. In FLOW VISUALIZATION - 1989. PAPERS PRESENTED AT THE WINTER ANNUAL MEET. OF AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SAN FRANC (Vol. 85 ), pp. 77-80). New York, U.S.A., American Society Mechanical Engineers.
    Cimbala, John Michael ; Sathianathan, D. ; Cosgrove, S. A. / Flow visualization through metal enclosures with neutron radiography. FLOW VISUALIZATION - 1989. PAPERS PRESENTED AT THE WINTER ANNUAL MEET. OF AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SAN FRANC. Vol. 85 ) New York, U.S.A., American Society Mechanical Engineers, 1989. pp. 77-80
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    Cimbala, JM, Sathianathan, D & Cosgrove, SA 1989, Flow visualization through metal enclosures with neutron radiography. in FLOW VISUALIZATION - 1989. PAPERS PRESENTED AT THE WINTER ANNUAL MEET. OF AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SAN FRANC. vol. 85 ), New York, U.S.A., American Society Mechanical Engineers, pp. 77-80.

    Flow visualization through metal enclosures with neutron radiography. / Cimbala, John Michael; Sathianathan, D.; Cosgrove, S. A.

    FLOW VISUALIZATION - 1989. PAPERS PRESENTED AT THE WINTER ANNUAL MEET. OF AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SAN FRANC. Vol. 85 ) New York, U.S.A., American Society Mechanical Engineers, 1989. p. 77-80.

    Research output: Chapter in Book/Report/Conference proceedingChapter

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    N2 - Many practical fluid flow problems involve flow inside metal shrouds (valves, combustors, boilers, turbomachinery, etc.) where visual access is not available. For flows under extreme pressure or heat, glass or transparent plastic can not be used; a flow visualization technique which permits visualization through metal containers is needed in these cases. Since neutrons can penetrate metal casings, neutron radiography has been developed for application to fluid flow visualization. This technique involves imaging of neutron opaque tracer materials, such as solid or fluid particles or streaklines, as they convect in neutron transparent ambient fluids. Surface flow visualization is also possible by using neutron opaque tufts. An extension of the surface tuft technique has also been developed, enabling the visualization of flow patterns away from solid surfaces. Presented here is a summary of the various flow visualization techniques developed in the laboratory, along with examples which illustrate how these techniques may be applied to practical fluid flow problems. These include flow over a circular cylinder, the recirculation pattern formed by a jet exhausting into a tank, and the flow pattern inside a rotating automotive torque converter. (A)

    AB - Many practical fluid flow problems involve flow inside metal shrouds (valves, combustors, boilers, turbomachinery, etc.) where visual access is not available. For flows under extreme pressure or heat, glass or transparent plastic can not be used; a flow visualization technique which permits visualization through metal containers is needed in these cases. Since neutrons can penetrate metal casings, neutron radiography has been developed for application to fluid flow visualization. This technique involves imaging of neutron opaque tracer materials, such as solid or fluid particles or streaklines, as they convect in neutron transparent ambient fluids. Surface flow visualization is also possible by using neutron opaque tufts. An extension of the surface tuft technique has also been developed, enabling the visualization of flow patterns away from solid surfaces. Presented here is a summary of the various flow visualization techniques developed in the laboratory, along with examples which illustrate how these techniques may be applied to practical fluid flow problems. These include flow over a circular cylinder, the recirculation pattern formed by a jet exhausting into a tank, and the flow pattern inside a rotating automotive torque converter. (A)

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    Cimbala JM, Sathianathan D, Cosgrove SA. Flow visualization through metal enclosures with neutron radiography. In FLOW VISUALIZATION - 1989. PAPERS PRESENTED AT THE WINTER ANNUAL MEET. OF AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SAN FRANC. Vol. 85 ). New York, U.S.A., American Society Mechanical Engineers. 1989. p. 77-80