Item Details

Analysis of Laminar Flow Between Stationary and Rotating Disks With Inflow

Upendra Rohatgi and Eli Reshotko
Format
Book; Government Document; Online; EBook
Published
Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the National Technical Information Service [distributor], 1974.
Language
English
Series
NASA Contractor Report
Summary
The laminar flow between a rotating and a stationary disk with inflow was analyzed. Solutions to the dimensionless governing equations are sought by expanding each of the velocity components in powers of inverse radius. The equations to leading order are those for the configuration with no inflow. The subsequent orders yield sets of linear ordinary differential equations. Solutions are obtained for the first two of these subsequent orders. The solutions indicate that inflow tends to increase the magnitude of the azimuthal velocity in the flow between the two disks and to decrease the torque on the rotating disk. For Prandtl number one, an energy integral is obtained which relates the temperature distribution to the velocity distribution for all Reynolds numbers and therefore eliminates the needs for separate solution of the energy equation.
Description
viii, 110 p. : ill. ; 27 cm.
Mode of access: Internet.
Notes
  • "NASA CR-2356."
  • "February 1974."
  • Cover title.
  • Includes bibliographical references (p. 64).
Series Statement
NASA contractor report ; NASA CR-2356
Logo for No Copyright - United StatesNo Copyright - United States
Technical Details

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    a| Analysis of laminar flow between stationary and rotating disks with inflow / c| Upendra Rohatgi and Eli Reshotko.
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    a| Washington, D.C. : b| National Aeronautics and Space Administration ; a| Springfield, Va. : b| For sale by the National Technical Information Service [distributor], c| 1974.
    300
      
      
    a| viii, 110 p. : b| ill. ; c| 27 cm.
    490
      
    0
    a| NASA contractor report ; v| NASA CR-2356
    500
      
      
    a| "NASA CR-2356."
    500
      
      
    a| "February 1974."
    500
      
      
    a| Cover title.
    504
      
      
    a| Includes bibliographical references (p. 64).
    520
      
      
    a| The laminar flow between a rotating and a stationary disk with inflow was analyzed. Solutions to the dimensionless governing equations are sought by expanding each of the velocity components in powers of inverse radius. The equations to leading order are those for the configuration with no inflow. The subsequent orders yield sets of linear ordinary differential equations. Solutions are obtained for the first two of these subsequent orders. The solutions indicate that inflow tends to increase the magnitude of the azimuthal velocity in the flow between the two disks and to decrease the torque on the rotating disk. For Prandtl number one, an energy integral is obtained which relates the temperature distribution to the velocity distribution for all Reynolds numbers and therefore eliminates the needs for separate solution of the energy equation.
    536
      
      
    a| Prepared by Case Western Reserve University, Cleveland, Ohio for Lewis Research Center c| NGL 36-003-139
    538
      
      
    a| Mode of access: Internet.
    650
      
    0
    a| Fluid dynamics x| Mathematical models.
    650
      
    0
    a| Disks, Rotating x| Mathematical models.
    650
      
    0
    a| Turbulent boundary layer x| Mathematical models.
    650
      
    0
    a| Laminar flow x| Mathematical models.
    650
      
    7
    a| Temperature distribution. 2| nasat
    650
      
    7
    a| Pressure distribution. 2| nasat
    650
      
    7
    a| Prandtl number. 2| nasat
    650
      
    7
    a| Differential equations. 2| nasat
    650
      
    7
    a| Rotating disks. 2| nasat
    650
      
    7
    a| Laminar flow. 2| nasat
    700
    1
      
    a| Reshotko, Eli.
    710
    2
      
    a| Lewis Research Center.
    710
    2
      
    a| Case Western Reserve University.
    974
      
      
    b| UIU c| UIUC d| 20141113 s| google u| uiug.30112106734129 y| 1974 r| pd q| bib

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