| Issue |
MATEC Web Conf.
Volume 328, 2020
XXII. International Scientific Conference – The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2020 (AEaNMiFMaE-2020)
|
|
|---|---|---|
| Article Number | 02018 | |
| Number of page(s) | 11 | |
| Section | Modelling and Simulation in Fluid Mechanics and Energy | |
| DOI | https://doi.org/10.1051/matecconf/202032802018 | |
| Published online | 18 November 2020 | |
Experimental Investigation and Numerical Modelling of Flow Characteristics of Non-Rotating Twin Screw Model
1 VŠB-TU Ostrava, Faculty of Mechanical Engineering, Department of Hydromechanics and Hydraulic Equipment, 17. listopadu 2172/15, Ostrava-Poruba 70800, Czech Republic
2 Hydrosystem project a. s., tř. Kosmonautů 1103/6a, Hodolany, 77900 Olomouc, Czech Republic
* Corresponding author: sylva.drabkova@vsb.cz
Twin-screw pumps employ clearances between both screws and screw rotors and housing, which cause backflow as function of pressure differential. Reduction of this flow can be reached by proper geometry design. For the experimental investigation, the scaled model 1:2 of the screws section was produced with trapezoidal tooth profile in two modifications differing in tooth width and pitch. Measurement of flow characteristics of non-rotating twin-screw model was carried out for validation and possible corrections of the 3D CFD model. The testing was done with non-Newtonian liquid met in the food industry and additionally also with water. Experimental data were partly compared with results obtained from numerical simulations.
© The Authors, published by EDP Sciences, 2020
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