SIMULATION OF MATERIAL VISCOSITY UPON EXPRESSION OF VEGETABLE OIL IN EXTRUDER

Автор(и)

  • Alexander Gukasyan

DOI:

https://doi.org/10.32461/2226-3209.3.2018.173600

Анотація

Abstract. At present it is impossible to simulate flows of non-Newtonian fluids complicated by compressibility, diffusion and mass transfer with sufficient accuracy for equipment designing on the basis of known methods of expression calculation. An engineering method of calculation of press variables based only on information of material viscosity during expression and geometry of screw flights has been developed. An adequate mathematical model upon extrusion of oil crops is based on up-to-date mathematical analysis of expression of plastically deformed porous medium saturated with oil via pressing cage which is a part of screw body. Press variables can be approximated by properties of viscous plastic material upon pressing by solving inverse problems of comparison of experimental and simulation data.
Key words: viscosity; expression; simulation; porous medium; filtration.

Посилання

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