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  4. Application of CFD Numerical Simulations and Shape Optimization to Modify the Flow Characteristics of Throttle Valves

Application of CFD Numerical Simulations and Shape Optimization to Modify the Flow Characteristics of Throttle Valves

JEECS.
2025;
Volume 11, Number 1
: pp. 33 – 43
https://doi.org/10.23939/jeecs2025.01.033
Received: April 17, 2025
Revised: May 31, 2025
Accepted: June 23, 2025

A. Dykas, U. Warzyńska. (2025) Application of CFD numerical simulations and shape optimization to modify the flow characteristics of throttle valves. Energy Engineering and Control Systems, Vol. 11, No. 1, pp. 33 – 43. https://doi.org/10.23939/jeecs2025.01.033

Authors:
  1. Alicja Dykas
  2. Urszula Warzyńska
1
Wrocław University of Science and Technology
2
Wrocław University of Science and Technology

The aim of the study was to perform a numerical analysis using the CFD method of oil flow through a hydraulic valve gap and to perform an optimisation of the gap shape with a view to linearising the valve characteristics. As part of the work, a flow analysis of the valve was carried out using numerical simulations. This made it possible to develop the characteristics of the studied valve. The optimisation process started with a shape sensitivity analysis to determine the effect of geometry on key flow parameters such as pressure drop.  One of the resulting solutions selected on the basis of its functionality and technological manufacturing possibility was further analysed. The flow characteristics determined for the optimised design were compared with those of the original valve using statistical tools. It was shown that optimised geometry achieved a more linear characteristic, which will enable more precise throttle control using this valve.

shape optimisation
computational fluid dynamics
pressure valve
pressure drop
flow characteristics
finite volume methods
hydraulic systems
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