Numerical Investigation of 3-D Turbulent Flow in Orifice Plate within a Pipe

Abstract:

A numerical study of the turbulent flow in an orifice plate within a pipe is carried out by utilizing the Navier-Stokes (N-S) equations. The governing equations are solved using primitive variables with a finite volume method (FVM) and simulated using the finite volume based commercial CFD code ANSYS. The study investigates the influences of Reynolds numbers (Re = 5000, 10000, and 15000) and aspect ratio (β = 0.2, 0.3, and 0.5), on the flow characteristics, i.e. the velocity profile, the differential pressure, and the vorticity, and on the mechanical properties, i.e. the strain, the stress, and the total deformation of the flow around and beyond the orifice. It is found that as the Reynolds number increases, the flow velocity and the pressure increase. The vorticity images show a slightly different behavior. As the Reynolds number has its own effect on the results, it is also found that the aspect ratio affects the results more significantly. The flow patterns are presented for unsteady flow throughout the orifice plate at different values of the Reynolds number.

• Periodical: Applied Mechanics and Materials (Volume 761)
• Pages: 27-31
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.761.27
• Online since: May 2015
• Authors: Mohamed Abed Alabas Siba*, Wan Mohd Faizal Wan Mahmood, Mohd Zaki Nuawi, Rasidi Rasani
• Keywords: 3-D Turbulent Flow, CFD-ANSYS, Orifice Plate

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