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Axisymmetric inviscid swirling flows produced by bellmouth and centerbodyThe effect of large deformation in the flow between the bellmouth and centerbody is considered analytically for application to studies of vortex breakdown in a pipe. Basic equations are defined for axisymmetric inviscid swirling flows at the inflow and outflow sections. Axial and circumferential velocity component profiles are presented, and comparisons are made with trials involving vane angles of 42 deg and Re of 2300. Axial components of the prediction matched well in the inner half of the pipe radius and not well with the outer, while circumferential predictions were good only at the axis. A lack of viscosity was concluded to result in the inaccuracies near the wall.
Document ID
19820042810
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Nakamura, Y.
(NASA Ames Research Center Moffett Field, CA; Nagoya University, Nagoya, Japan)
Yasuhara, M.
(Nagoya University Nagoya, Japan)
Hama, T.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 10, 2013
Publication Date
April 1, 1982
Publication Information
Publication: AIAA Journal
Volume: 20
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
82A26345
Distribution Limits
Public
Copyright
Other

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