Statistics – Computation
Scientific paper
Jun 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jpha.confu....c&link_type=abstract
AIAA, ASME, SAE, and ASEE, Joint Propulsion Conference, 22nd, Huntsville, AL, June 16-18, 1986. 11 p.
Statistics
Computation
Channel Flow, Computational Fluid Dynamics, Flow Geometry, Turbulent Flow, Water Tunnel Tests, Boundary Value Problems, Flow Velocity, Incompressible Flow, Navier-Stokes Equation, Pipe Flow, Turbulence Models
Scientific paper
A theoretical and experimental investigation of turbulent flows inside a 180-deg strongly curved channel is included in the present study. A 10 by 100 centimeter water channel with a 10 centimeter radius turn was employed for the experimental study. Data measured are velocity profiles and distributions of longitudinal turbulence intensity. Numerical investigations are performed by solving the incompressible Navier-Stokes equations and turbulence models using a finite difference flow solver in generalized curvilinear coordinate systems. A widely used two-equation turbulence model and its modified version, which includes the effect of strong curvature on the turbulence length scale through a relation of algebraic Reynolds stress model, are employed to predict the turbulence quantities inside the flow field. Improvements on the predictions are obtained using the present approach.
Chen Yen-Sen
Sandborn V. A.
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