New Method of Adjusting Flow Parameters of Axial Fans

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Published: Mar 23, 2026
DOI: https://doi.org/10.12693/APhysPolA.149.S81
Keywords:
axial fan, fan regulation method, numerical methods, computational fluid dynamics (CFD) simulation

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P. Odyjas
Wroclaw University of Science and Technology, Faculty of Mechanical Engineering, Łukasiewicza 7/9, 50-371 Wrocław, Poland
J. Więckowski
Wroclaw University of Science and Technology, Faculty of Mechanical Engineering, Łukasiewicza 7/9, 50-371 Wrocław, Poland
M. Vlasko
University of Žilina, Faculty of Mechanical Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia
K. Urbański
ELMINE sp. z o.o., Wierzbowa 7, 67-200 Głogów, Poland
M. Śliwiński
Kazimierz Wielki University, Faculty of Mechatronics, Kopernika 1, 85-074 Bydgoszcz, Poland
Z. Szczepański
Kazimierz Wielki University, Faculty of Mechatronics, Kopernika 1, 85-074 Bydgoszcz, Poland
A. Szczepańczyk
Kazimierz Wielki University, Faculty of Mechatronics, Kopernika 1, 85-074 Bydgoszcz, Poland
M. Saga
University of Žilina, Faculty of Mechanical Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia
D. Pietrusiak
Wroclaw University of Science and Technology, Faculty of Mechanical Engineering, Łukasiewicza 7/9, 50-371 Wrocław, Poland
M. Macko
Kazimierz Wielki University, Faculty of Mechatronics, Kopernika 1, 85-074 Bydgoszcz, Poland
I. Kuric
University of Žilina, Faculty of Mechanical Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovakia
P. Moczko
Wroclaw University of Science and Technology, Faculty of Mechanical Engineering, Łukasiewicza 7/9, 50-371 Wrocław, Poland

Abstract

The paper presents numerical investigations of a new method of regulation of an axial fan. This method is based on dividing the impeller blade and stator guide vane into two parts, i.e., fixed and movable. The proposed new method was compared with a reference fan, in which the system with whole movable blade regulation is applied. Flow simulations aimed at the evaluation of the regulation characteristic of both solutions. The results showed that the new regulation method has a wider regulation control parameter, with values 10.2% and 12.2% higher for flow and pressure, respectively, than those of the reference fan. The drawback of the new idea is the restricted regulation range in the case of higher flows and pressures, which results from growing fluid flow losses. The obtained results suggest that the optimal regulation method would be a combination of the two approaches considered in the project. It means that an impeller with whole regulation blade and a stator guide vane with movable front part should have better performance. 


 

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How to Cite
[1]
P. Odyjas, “New Method of Adjusting Flow Parameters of Axial Fans”, Acta Phys. Pol. A, vol. 149, no. 2, p. S81, Mar. 2026, doi: 10.12693/APhysPolA.149.S81.
Issue
Vol. 149 No. 2 (2026): Proceedings of the 30th International Slovak–Polish Scientific Conference on Machine Modelling and Simulations 2025
Section
Special segment
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This work is licensed under a Creative Commons Attribution 4.0 International License.

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