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Flow force research and structure improvement of cartridge valve core based on CFD method
Jilu Liu1, Ruichuan Li1, Xinkai Ding1
1School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250000, China.
Heliyon
|December 2, 2022
Summary
This study modifies the flow force formula and designs a new valve core to mitigate negative hydraulic forces in cartridge poppet valves. The novel structure effectively compensates for hydrodynamic forces, improving valve performance.
Area of Science:
- Fluid Mechanics
- Mechanical Engineering
- Hydraulic Systems
Background:
- Hydraulic forces negatively impact cartridge poppet valve systems.
- Existing designs may not adequately address these forces.
Purpose of the Study:
- To modify the flow force calculation formula based on momentum principles.
- To design and evaluate a novel valve core structure for hydrodynamic force compensation.
Main Methods:
- Modified flow force formula derivation using the law of momentum.
- Computational Fluid Dynamics (CFD) simulations to analyze hydrodynamic forces.
- Analysis of the main valve core's arc structure influence on compensation.
- System modeling using AMEsim and experimental validation on a test-bed.
Main Results:
- The modified formula accurately predicts flow forces.
- CFD analysis revealed parameter influences on hydrodynamic forces.
- Optimal arc structure parameters for hydrodynamic compensation were identified.
- Experimental results confirmed the effectiveness of the new valve core.
Conclusions:
- The developed valve core structure significantly compensates for hydrodynamic forces.
- The study provides a validated approach for improving cartridge poppet valve performance.
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