Experimental and numerical study of the pressure of the water flow in a venturi tube

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San Luis Baudilio Tolentino Masgo
Grupo de Modelamiento Matemático y Simulación Numérica, Universidad Nacional de Ingeniería, Perú.
http://orcid.org/0000-0001-6320-6864

Abstract

The Venturi tube is a device used to measure the flow rate in different industrial processes. In the present work, a study is carried out for two cases, one experimental and another numerical of the pressure exerted by the flow of water on the walls of a Venturi tube. In the first case, five experiments with different flow rates are carried out. In the second, the flow is simulated for two types of meshes and two turbulence models, using the code COMSOL Multhiphysics 4.3. The experimental and numerical results showed that the pressures of the flow on the walls in two references identified as C and G keep their magnitude constant; in addition, the numerical profiles showed that the lowest pressure drop occurs in the wall at the inlet and outlet of the throat section. It is concluded that, the distribution of the flow pressure in the wall of the throat section has a convex profile, and the results of pressures obtained for the standard $k-e$ turbulence model are more adjusted to the experimental data.

Keywords

flujo de agua, modelo de turbulencia, presión, simulación, tubo Venturi Water flow, Turbulence model, Pressure, Simulation, Venturi tube

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Published
Dec 27, 2019
DOI https://doi.org/10.17163/ings.n23.2020.01

Article Details

Issue
No. 23 (2020): january-june
Section
Scientific Paper