| Issue |
EPJ Web of Conferences
Volume 114, 2016
EFM15 – Experimental Fluid Mechanics 2015
|
|
|---|---|---|
| Article Number | 02034 | |
| Number of page(s) | 6 | |
| Section | Contributions | |
| DOI | https://doi.org/10.1051/epjconf/201611402034 | |
| Published online | 28 March 2016 | |
https://doi.org/10.1051/epjconf/201611402034
Clearance gap flow: extended pneumatic measurements and simulations by discontinuous Galerkin finite element method
1 Institute of Thermomechanics AS CR, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
2 NTIS – New Technologies for the Information Society, Faculty of Applied Sciences, University of West Bohemia, Pilsen, Czech Republic
a e-mail: jindrich.hala@gmail.com
Published online: 28 March 2016
In the present paper, new results of measurements of the compressible viscous fluid flow in narrow channels with parallel walls under the conditions of aerodynamic choking are presented. Investigation was carried out using the improved test section with enhanced capability to accurately set the parallelism of the channel walls. The measurements were performed for the channels of the dimensions: length 100 mm, width 100 mm and for various heights in the range from 0.5 mm to 4 mm. The results in the form of distribution of the static pressure along the channel axis including the detailed study of the influence of the deviation from parallelism of the channel walls are compared with previous measurements and with numerical simulations performed using an in-house code based on Favre averaged system of Navier-Stokes equations completed with turbulence model of Spalart and Allmaras and a modification of production term according to Langtry and Sjolander. The spatial discretization of the governing equations is performed using the discontinuous Galerkin finite element method which ensures high order spatial accuracy of the numerical solution.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.