NDLI: Numerical analysis of three-dimensional viscous internal flows

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Numerical analysis of three-dimensional viscous internal flows

Content Provider	NASA Technical Reports Server (NTRS)
Author	Chima, Rodrick V. Yokota, Jeffrey W.
Copyright Year	1988
Description	A 3-D Navier-Stokes code has been developed for analysis of turbomachinery blade rows and other internal flows. The Navier-Stokes equations are written in a Cartesian coordinate system rotating about the x-axis, and then mapped to a general body-fitted coordinate system. Streamwise viscous terms are neglected using the thin-layer assumption, and turbulence effects are modeled using the Baldwin-Lomax turbulence model. The equations are discretized using finite differences on stacked C-type grids and are solved using a multistage Runge-Kutta algorithm with a spatially-varying time step and implicit residual smoothing. Calculations have been made of a horseshoe vortex formed in front of a flat plate with a round leading edge standing in a turbulent endwall boundary layer. Comparisons are made with experimental data taken by Eckerle and Langston for a circular cylinder under similar conditions. Computer and measured results are compared in terms of endwall flow visualization pictures and total pressure loss contours and vector plots on the symmetry plane. Calculated details of the primary vortex show excellent agreement with the experimental data. The calculations also show a small secondary vortex not seen experimentally.
File Size	764865
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19880011732
Archival Resource Key	ark:/13960/t20c9v81z
Language	English
Publisher Date	1988-01-01
Access Restriction	Open
Subject Keyword	Aeronautics (general) Navier-stokes Equation Numerical Analysis Turbine Blades Fluid Dynamics Three Dimensional Flow Turbulence Models Vortices Reynolds Number Turbomachinery Mach Number Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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