Laminar Flow through a Rectangular Horizontal Channel with Asymmetrical Contraction

Abstract:

Numerical simulation for the three-dimensional laminar flow through a forward facing step channel was simulated by Fluent 6.3 code. Four Reynolds numbers and four step lengths were analyzed. The results showed that the length of the recirculation zone upstream the step depends on Reynolds number, as well as on the step height (h), while the height of the recirculation zone extends about 70% of the step height. In addition, it was found that the velocity profile in the stream direction at the channel exit presents a fully developed profile for the axial component. Nonetheless, the profile along the transversal direction does not have a parabolic profile, even for a length of 60h

• Periodical: Applied Mechanics and Materials (Volume 15)
• Pages: 21-26
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.15.21
• Online since: August 2009
• Authors: O.A. Morales-Contreras, J.G. Barbosa, J.A. Jiménez-Bernal, Claudia del Carmen Gutiérrez Torres
• Keywords: Forward Facing Step, Fully Developed Flow, Numerical Simulation, Reattachment Length

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