Publication: Numerical analysis of the flow in a narrow channel with a backward facing step
Loading...
Identifiers
Publication date
2014
Defense date
2014-07-11
Authors
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The project consists on the development of a numerical method using Matlab to
simulate the flow over a backward facing step. The effects of varying the Reynolds
number and the Expansion Ratio, H/S, are then studied. The simulations are performed
for the range of 5 ≤ Re ≤ 389 and 0 ≤ H/S ≤ 1/2.
The code is validated comparing the results with those obtained by Armaly, Durst,
Pereira & Schonung. They studied the flow over a similar channel with a backward
facing step varying the Reynolds number. Once checked that the numerical method
gives sensible results, a study of the effects of varying the expansion ratio, H/S, over
the Reynolds number range is carried out in order to find the appearance of a
recirculation bubble zone. Also the existence of an expansion ratio that has a
recirculation bubble for all Re and on the other side, an expansion ratio that does not
present any recirculation bubble over the range of will be investigated.
Description
Keywords
Dinámica de fluidos, Análisis numérico, MATLAB (Programa de aplicación)