Abstract
This paper presents the modelling of hot-water flow at the inlet of a swimming pool in the absence of swimmers, in order to find the option that allowed the best distribution of the fluid with less temperature loss. Two different input velocities, 3 and 4 m/s and two injection-nozzles inclinations, 60° and 30°, were used in the simulation. COMSOL Multiphysics software, with appropriate boundary conditions that were obtained by direct measurements in the pool, was used. The best condition was observed for an input velocity of 4 m/s and an injection-nozzle inclination of 30°, since it presented the best distribution of the fluid at the temperature of 29.86 °C in most of the considered site.
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