Modelling and simulation of bottle rinsing

Abstract

Summary This study describes newly developed mathematical models of bottle rinsing. Our approach is based on 3D‐CFD models of turbulent two‐phase flow (water and air), which have been implemented based on the freely available open source software OpenFOAM. The models are validated using data obtained with a standard injection nozzle and then used to evaluate the performance of two fictitious modified nozzle types w.r.t. cleaning efficiency, water consumption and water drainage. Maps of the interior walls of the bottles showing the distribution of important parameters such as wall shear stresses or water coverage were derived from the simulations. The simulations suggest that rotating or pulsating injection nozzles may perform better than standard nozzle configurations.

Rheological and Flow Behaviour of Yolk, Albumen and Liquid Whole Egg from Eggs of Six Different Poultry Species

“…In the other cases, the fresh liquid egg products had a laminar flow. Turbulent flow in real pipes is problematic, and can lead to wear [ 35 ], vibrations [ 36 ], and gradually to the failure of the technology or system. Turbulence must be prevented by choosing a suitable pipe geometry, by changing the temperature (it affects viscosity [ 37 ]) or by regulating the pressure drop (it affects volume flow [ 24 ]).…”

New methods to optimize wine production at all stages from vineyard to bottle

“…Similar to previous work in the modeling workgroup at Hochschule Geisenheim, heat, water and nutrient transport in soils can be predicted using OpenFOAM, a 3D simulation software available in Gm.Linux [8,9]. This (or similar) software has also been used in the workgroup to perform 3D computer simulations of filtration or bottle related processes [10][11][12]. Gm.Linux offers sophisticated software both for the processing of CAD data in the preprocessing step of the simulations and for the postprocessing step including high-quality video generation (Salome, Paraview) [1,13,14].…”