NDLI: Turbulent flow field predictions in sharply curved turn-around ducts

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Turbulent flow field predictions in sharply curved turn-around ducts

Content Provider	NASA Technical Reports Server (NTRS)
Author	Santi, L. M.
Copyright Year	1986
Description	Two-dimensional turbulent flow of incompressible Newtonian fluids in sharply curved 180 deg turn around ducts is studied. Results of an approximate numerical flow field analysis utilizing an orthogonal, body-fitted, curvilinear coordinate system are compared to results based on a traditional cylindrical reference frame. Qualitative induction of general streamfield characteristics as well as quantitative benchmarks for the planning of future experimentation are provided. In addition, preliminary results of an augmented kappa - epsilon turbulence model analysis, which explicitly accounts for the effects of streamline curvature and pressure strain in internal turbulent flows, are presented. Specific model difficulties are discussed and comparisons with standard kappa - epsilon model predictions are included.
File Size	2563627
Page Count	34
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19860017717
Archival Resource Key	ark:/13960/t1dk09t23
Language	English
Publisher Date	1986-06-01
Access Restriction	Open
Subject Keyword	Aerodynamics Turbulence Turbulent Flow Fluid Dynamics Computational Fluid Dynamics Ducts Two Dimensional Flow Turbulent Mixing Laminar Flow Newtonian Fluids Flow Distribution Cylindrical Bodies K-epsilon Turbulence Model Curvature Incompressible Fluids Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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