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Revista Politécnica

On-line version ISSN 2477-8990Print version ISSN 1390-0129


TOAPAXI-ALVAREZ*, Jorge; SILA-BASTIDA, Roberto  and  TORRES-JACOBOWITZ, Cristina. Three-Dimensional Numerical Modeling of the Palmer-Bowlus Measuring Flume Applying the FLOW-3D Software. Rev Politéc. (Quito) [online]. 2022, vol.49, n.1, pp.43-52. ISSN 2477-8990.

The Palmer-Bowlus flume was developed in 1936, as an adaptation of the Venturi flume for the use in sewer systems, due to the difficulty in modifying the pipe invert. There are commercially available single-body Palmer-Bowlus flume with their respective discharge curves, which increase the cost of sewer projects. Based on the physical model of the Palmer-Bowlus flume (Torres & Vásquez, 2010), the aim of this research was to carry out the three-dimensional numerical modeling of these flow meters, considering four pipe diameters: 160 mm, 200 mm, 250 mm and 400 mm; the selected diameters are the most used ones, according to the information provided by the Empresa Pública Metropolitana de Agua Potable y Saneamiento de Quito (EPMAPS). The discharge curves were calibrated and validated using the FLOW-3D program. Meshing had a great influence on the quality results and duration of the numerical simulation; in contrast, the roughness and turbulence models (RNG y k-e) had little influence. The discharge curves obtained in the numerical modeling have good approximation to those obtained in the physical model.

Keywords : Sewer; Palmer-Bowlus; flow meter; CFD; FLOW-3D.

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