Fluid Behaviour

Since fluids are as diverse as their rheological characteristics fluid dynamically designed dosing units must be adequate to the characteristics of the given fluid in order to meet qualitatively and quantitatively the requirements. An adequate design of the filling machine allows to shorten filling times and to meet such requirements as:

• to reduce dripping of the fluid at the beginning and end of the dosage (mostly with low viscosity products and products, containing particles)
• to have a defined time of dosage
• to avoid the pollution of the sealing seam and the dosing unit

Furthermore, research has to be done about the maximal dosing preciseness of the different filling principles depending on the viscosity and density of the product. This is done with the help of numerical calculations, mostly Finite-Element-Method, accompanied by experiments.

Procedure: Together with the industrial committee accompanying the project, filling products and metering units (which seem to have the potential of improvement) will be determined and the aims of the project defined.

After being granted by AiF, the further work on the project will include:

• computing fluid dynamics of metering units
• making a test bench for dosing fluids