摘要:The paper presents an investigation of transient flow of viscous incompressible material from inside of the nozzle to outside in to a forming box by using specially developed 3-D numerical model. Model is fitted for quantitative analysis of product flow parameters in the area, which is characterised as having free surfaces and makes no restrictions to free flow of the product. An optimal law of the forming box movement was obtained in order to improve the box filling quality and guarantee a nice product levelling of it’s free top surface.