Development of a Couette-Taylor flow device with active minimization of secondary circulation

E. Schartman; H. Ji; M. J. Burin

doi:10.1063/1.3077942

Development of a Couette-Taylor flow device with active minimization of secondary circulation

E. Schartman, H. Ji, M. J. Burin

Astrophysical Sciences

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

A novel Taylor-Couette experiment has been developed to produce rotating shear flows for the study of hydrodynamic and magnetohydrodynamic instabilities which are believed to drive angular momentum transport in astrophysical accretion disks. High speed, concentric, corotating cylinders generate the flow where the height of the cylinders is twice the radial gap width. Ekman pumping is controlled and minimized by splitting the vertical boundaries into pairs of nested, differentially rotating rings. The end rings and cylinders comprise four independently driven rotating components which provide flexibility in developing flow profiles. The working fluids of the experiment are water, a water-glycerol mix, or a liquid gallium alloy. The mechanical complexity of the apparatus and large dynamic pressures generated by high speed operation with the gallium alloy presented unique challenges. The mechanical implementation of the experiment and some representative results obtained with laser Doppler velocimetry in water are discussed.

Original language	English (US)
Article number	024501
Journal	Review of Scientific Instruments
Volume	80
Issue number	2
DOIs	https://doi.org/10.1063/1.3077942
State	Published - 2009

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.3077942

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title = "Development of a Couette-Taylor flow device with active minimization of secondary circulation",

abstract = "A novel Taylor-Couette experiment has been developed to produce rotating shear flows for the study of hydrodynamic and magnetohydrodynamic instabilities which are believed to drive angular momentum transport in astrophysical accretion disks. High speed, concentric, corotating cylinders generate the flow where the height of the cylinders is twice the radial gap width. Ekman pumping is controlled and minimized by splitting the vertical boundaries into pairs of nested, differentially rotating rings. The end rings and cylinders comprise four independently driven rotating components which provide flexibility in developing flow profiles. The working fluids of the experiment are water, a water-glycerol mix, or a liquid gallium alloy. The mechanical complexity of the apparatus and large dynamic pressures generated by high speed operation with the gallium alloy presented unique challenges. The mechanical implementation of the experiment and some representative results obtained with laser Doppler velocimetry in water are discussed.",

author = "E. Schartman and H. Ji and Burin, {M. J.}",

note = "Funding Information: We appreciate J. Goodman, who suggested the topic of SHI and M. Nornberg, who proofed an early draft of this manuscript and suggested improvements. Technical and engineering work was provided by R. Cutler, P. Heitzenroeder, C. Jun, L. Morris, and S. Raftopolous of PPPL. Machining of the rotating assembly was performed by General Tool Co. of Cincinnati, OH, with additional machining performed by the Department of Physics Machine Shop, Princeton University and PPPL Tech Shop. This research was supported by the U.S. Department of Energy{\textquoteright}s Office of Science—Fusion Energy Sciences Program, the U.S. National Aeronautics and Space Administration{\textquoteright}s Astronomy and Physics Research and Analysis Program (Grant No. ATP03-0084-0106), and Astrophysics Theory Program (Grant No. APRA04-0000-0152), and also the U.S. National Science Foundation, Physics and Astronomical Sciences Divisions (Grant No. AST-0205903). ",

year = "2009",

doi = "10.1063/1.3077942",

language = "English (US)",

volume = "80",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics Publising LLC",

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AU - Ji, H.

AU - Burin, M. J.

N1 - Funding Information: We appreciate J. Goodman, who suggested the topic of SHI and M. Nornberg, who proofed an early draft of this manuscript and suggested improvements. Technical and engineering work was provided by R. Cutler, P. Heitzenroeder, C. Jun, L. Morris, and S. Raftopolous of PPPL. Machining of the rotating assembly was performed by General Tool Co. of Cincinnati, OH, with additional machining performed by the Department of Physics Machine Shop, Princeton University and PPPL Tech Shop. This research was supported by the U.S. Department of Energy’s Office of Science—Fusion Energy Sciences Program, the U.S. National Aeronautics and Space Administration’s Astronomy and Physics Research and Analysis Program (Grant No. ATP03-0084-0106), and Astrophysics Theory Program (Grant No. APRA04-0000-0152), and also the U.S. National Science Foundation, Physics and Astronomical Sciences Divisions (Grant No. AST-0205903).

PY - 2009

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N2 - A novel Taylor-Couette experiment has been developed to produce rotating shear flows for the study of hydrodynamic and magnetohydrodynamic instabilities which are believed to drive angular momentum transport in astrophysical accretion disks. High speed, concentric, corotating cylinders generate the flow where the height of the cylinders is twice the radial gap width. Ekman pumping is controlled and minimized by splitting the vertical boundaries into pairs of nested, differentially rotating rings. The end rings and cylinders comprise four independently driven rotating components which provide flexibility in developing flow profiles. The working fluids of the experiment are water, a water-glycerol mix, or a liquid gallium alloy. The mechanical complexity of the apparatus and large dynamic pressures generated by high speed operation with the gallium alloy presented unique challenges. The mechanical implementation of the experiment and some representative results obtained with laser Doppler velocimetry in water are discussed.

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Development of a Couette-Taylor flow device with active minimization of secondary circulation

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