Numerical investigation of flow rate measure using vortex counting at low Reynolds number
Laboratoire FIMA, Université Djilali Bounaama, Route de Theniet Elhad 44225 Khemis Miliana, Algérie.
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You The trapezoidal bluff body is a typical configuration of vortex shedding bodies. The aim of this work is to study flow behaviour over a trapezoidal cylinder at low Reynolds number. The geometry was constructed from a prototype device for measuring the volumetric flow-rate by counting vortices. Simulations were run for this geometry under steady and unsteady flow conditions using finite volume discretization. Laminar flow was investigated in this model with rigid walls and homogeneous incompressible Newtonian fluid. Calculations were performed for Reynolds number range 5 ≤ Re ≤ 200 and several flow parameters were documented. The present computations are in good agreement with the experimental observations and the numerical calculations by several investigators.
Key words: bluff body / confined flow / numerical calculations / steady and unsteady flow / vortex shedding flow meter
© The Authors, published by EDP Sciences, 2017
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