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Applied Sciences
Volume 14
Issue 23
10.3390/app142311037
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Study on Steady Flow Force of a Bidirectional Throttling Slide Valve and Its Compensation Optimization

by
Qi Mao
1,
Xinying Jia
2,
Zhe Liu
1,
Guang Li
1,
Yichi Cao
3 and
Qingjun Yang
2,*
1
National Key Laboratory on Ship Vibration and Noise, China Ship Scientific Research Center, Wuxi 2140082, China
2
Department of Fluid Control and Automation, Harbin Institute of Technology, Harbin 150006, China
3
The 28th Research Institute of China Electronics Technology Group Corporation, Nanjing 210007, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2024, 14(23), 11037; https://doi.org/10.3390/app142311037
Submission received: 21 October 2024 / Revised: 19 November 2024 / Accepted: 26 November 2024 / Published: 27 November 2024
Versions Notes

Abstract

This paper focuses on a typical pressure-controlled slide valve, utilizing momentum analysis and computational fluid dynamics to simulate and analyze the asymmetry of steady flow force curves under bidirectional throttling patterns. The entropy production theory is employed to reveal the causes of nonlinearity in the steady flow force of an inlet throttling slide valve. Based on flow field analysis, a flow force compensation scheme is proposed by adding a guiding shoulder and matching it with a suitably sized inner annular cavity. The study reveals that fluid momentum at the non-throttling valve port is the primary cause of the bidirectional throttling flow force difference, and under large-opening inlet throttling conditions, it may reverse the direction of the flow force. Vortex separation caused by turbulent pulsations is one of the intrinsic reasons for the nonlinearity of steady flow force.
Keywords: slide valve flow force; bidirectional throttling; computational fluid dynamics; spool structural optimization slide valve flow force; bidirectional throttling; computational fluid dynamics; spool structural optimization

Share and Cite

MDPI and ACS Style

Mao, Q.; Jia, X.; Liu, Z.; Li, G.; Cao, Y.; Yang, Q. Study on Steady Flow Force of a Bidirectional Throttling Slide Valve and Its Compensation Optimization. Appl. Sci. 2024, 14, 11037. https://doi.org/10.3390/app142311037

AMA Style

Mao Q, Jia X, Liu Z, Li G, Cao Y, Yang Q. Study on Steady Flow Force of a Bidirectional Throttling Slide Valve and Its Compensation Optimization. Applied Sciences. 2024; 14(23):11037. https://doi.org/10.3390/app142311037

Chicago/Turabian Style

Mao, Qi, Xinying Jia, Zhe Liu, Guang Li, Yichi Cao, and Qingjun Yang. 2024. "Study on Steady Flow Force of a Bidirectional Throttling Slide Valve and Its Compensation Optimization" Applied Sciences 14, no. 23: 11037. https://doi.org/10.3390/app142311037

APA Style

Mao, Q., Jia, X., Liu, Z., Li, G., Cao, Y., & Yang, Q. (2024). Study on Steady Flow Force of a Bidirectional Throttling Slide Valve and Its Compensation Optimization. Applied Sciences, 14(23), 11037. https://doi.org/10.3390/app142311037

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