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Download ebook An Empirical Model for Vane-Type Vortex Generators in a Navier-Stokes Code

Download ebook An Empirical Model for Vane-Type Vortex Generators in a Navier-Stokes Code

An Empirical Model for Vane-Type Vortex Generators in a Navier-Stokes Code by Julianne C Dudek
An Empirical Model for Vane-Type Vortex Generators in a Navier-Stokes Code
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Author: Julianne C Dudek
Number of Pages: 34 pages
Published Date: 31 Jul 2013
Publisher: Bibliogov
Publication Country: United States
Language: English
ISBN: 9781287265689
File Name: An.Empirical.Model.for.Vane-Type.Vortex.Generators.in.a.Navier-Stokes.Code.pdf
Download Link: An Empirical Model for Vane-Type Vortex Generators in a Navier-Stokes Code
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An empirical model which simulates the effects of vane-type vortex generators in ducts was incorporated into the Wind-US Navier-Stokes computational fluid dynamics code. The model enables the effects of the vortex generators to be simulated without defining the details of the geometry within the grid, and makes it practical for researchers to evaluate multiple combinations of vortex generator arrangements. The model determines the strength of each vortex based on the generator geometry and the local flow conditions. Validation results are presented for flow in a straight pipe with a counter-rotating vortex generator arrangement, and the results are compared with experimental data and computational simulations using a gridded vane generator. Results are also presented for vortex generator arrays in two S-duct diffusers, along with accompanying experimental data. The effects of grid resolution and turbulence model are also examined.

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