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Computation of viscous flow in curved ducts and comparison with experimental dataA three dimensional analysis for fully viscous subsonic internal flow is evaluated. The analysis, designated PEPSIG, solves an approximate form of the Navier-Stokes equations by an implicit spatial marching procedure. Results of calculations are presented for laminar flow through two different circular cross-sectioned 180 degree bends, and for laminar and turbulent flow through circular and square cross-sectioned 22.5 to 22.5 degree S-ducts. Quantitative comparisons with experimental data are shown for all cases. Special emphasis is placed on verifying the ability of the analysis to accurately predict the distorted flow fields resulting from pressure-driven secondary flows.
Document ID
19840005426
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Towne, C. E. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
December 1, 1983
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NASA-TM-83548
AIAA PAPER 84-0531
NAS 1.15:83548
E-1922
Meeting Information
Meeting: Aerospace Sci. Conf.
Location: Reno, NV
Country: United States
Start Date: January 9, 1984
End Date: January 12, 1984
Accession Number
84N13494
Funding Number(s)
PROJECT: RTOP 505-31-02B
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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