CFD analýza pelet krmiva v nádrži pro chov ryb

Abstract

The purpose of the study was to investigate two feeding pellet types, and assess their mean residence time in a simulated cylindrical fish tank with baffle, by the help of computational fluid dynamics. Properties of pellets from a previous sedimentation experiment were described by the Rosin-Rammler distribution in (CFD) software ANSYS Fluent. (CFD) analysis was performed using k–ω SST turbulence model and (DPM) method where the impact of pellets on flow pattern was neglected. The pellets were introduced to the simulation by the use of group injection method. For each injected position, the mean residence time was evaluated. It was observed for both pellet types, that the smallest mean residence time was positioned at the center of the tank, and the highest (MRT) was closer to the tank’s bounded wall. The basis of this study could be of use to marine biologists and aquaculturist, where a favorable injected position is categorized by the type of fish cultivated in the presented tank.

The purpose of the study was to investigate two feeding pellet types, and assess their mean residence time in a simulated cylindrical fish tank with baffle, by the help of computational fluid dynamics. Properties of pellets from a previous sedimentation experiment were described by the Rosin-Rammler distribution in (CFD) software ANSYS Fluent. (CFD) analysis was performed using k–ω SST turbulence model and (DPM) method where the impact of pellets on flow pattern was neglected. The pellets were introduced to the simulation by the use of group injection method. For each injected position, the mean residence time was evaluated. It was observed for both pellet types, that the smallest mean residence time was positioned at the center of the tank, and the highest (MRT) was closer to the tank’s bounded wall. The basis of this study could be of use to marine biologists and aquaculturist, where a favorable injected position is categorized by the type of fish cultivated in the presented tank.