Use of the OpenFoam software package for monitoring and predicting the interaction parameters of a fountain solution with a rough paper.

The interaction of fountain solutions with a content of 5% and 10% isopropyl alcohol with papers for offset and digital printing on a PDA ultrasonic measuring device is studied. The value t max was found, which characterizes time of the beginning of fiber swelling in the paper structure, which made it possible to set time for calculating the numerical model and simulating beginning of the interaction of fountain solution with paper. Computer simulation was carried out using OpenFoam –Paraview, an open source software package. In OpenFoam package, geometry and a computational grid are constructed for the area of the interaction of solution with rough paper surface, calculations are carried out by the method of liquid volume, including a period of time, that is not recorded by a PDA ultrasound device. Visualization of calculations is presented in the ParaView package. [ABSTRACT FROM AUTHOR]