Acta Mechanica Slovaca 2024, 28(1):60-65 | DOI: 10.21496/ams.2024.002

Analysis of the Mixing of a Newtonian Material with a Strongly Viscous Material using CFD Numerical Modelling

Jan Adamec1, *, Marian Bojko1, Rostislav Zapletal2, Josef Veselý2
1 V©B-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Hydromechanics and Hydraulic Equipment, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
2 HYDROSYSTEM project a.s. Kosmonautů 1103/6a 772 11 Olomouc; Czech Republic

This article deals with the mixing of a Newtonian material with a strongly viscous (non-Newtonian) material in a pipe with a static mixer. This problematic has a practical application in the food industry. CFD software ANSYS Fluent was used for numerical modeling. The mathematical model is defined using the basic balance equations, including the equation for species. The viscosity for a non-Newtonian highly viscous material (the working material) is defined using the Herschel-Bulkley model. A 3D computational model of a pipe with a static helical mixer is created in the DesignModeler program, which is part of the ANSYS software. The computational mesh was created in the Fluent Meshing program. The CFD modeling analysis is implemented for two different pipe diameters and different flow rates at the pipe inlet. The evaluation of the results is processed by the ANSYS Fluent program using the distribution of basic quantities and graphs.

Keywords: numerical modelling, strongly viscous substance, static mixer

Received: January 20, 2024; Revised: February 15, 2024; Accepted: February 27, 2024; Published: March 15, 2024  Show citation

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Adamec, J., Bojko, M., Zapletal, R., & Veselý, J. (2024). Analysis of the Mixing of a Newtonian Material with a Strongly Viscous Material using CFD Numerical Modelling. Acta Mechanica Slovaca, 28(1), 60-65. doi: 10.21496/ams.2024.002
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