Effects of Clearance on the Performance of a Labyrinth Seal Under Wet-Gas Conditions

Zhang, Min; Childs, Dara W.; Tran, Dung L.; Shrestha, Hari

doi:10.1115/1.4048797

Cited by 9 publications

(2 citation statements)

References 9 publications

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“…The same tendency is also presented in Ref. [22]. Moreover, the k and the C are the largest at C r = 0.1 mm.…”

Section: Dynamic Characteristicssupporting

confidence: 86%

“…The results showed that the whirl frequency ratio of smooth-stator/grooved-rotor seal is generally high, which means poorer stability characteristics. Zhang et al [22] measured the influence of clearance on the rotor performance of a labyrinth seal in wet-gas conditions. They discovered that small clearance obtained high critical speed for inlet liquid volume fraction from 12% to 15%.…”

Section: Introductionmentioning

confidence: 99%

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Study on Leakage Performance and Rotordynamic Characteristics of a Novel Semi-Y Type Labyrinth Seal

Shi

Zhou

2022

Lubricants

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A new type of labyrinth seal with semi-Y of rotor teeth (SYLS) is proposed in this paper. The rationality and accuracy of the numerical model are validated by the experimental results, and the static characteristics are investigated. Furthermore, the effects of pressure drop, rotation speed, tilt angle, and tip clearance on the dynamic coefficients and stability are also studied in detail. The results imply that the novel SYLS structure generally has better leakage and stability performance compared with the traditional labyrinth seal. The maximum error applied in the numerical simulation is only 2.81%, and the worst leakage occurs when the tilt angle is 70° for the SYLS structure due to the smaller vortex dissipation. Moreover, the novel SYLS structure shows the best stability when the tilt angle is 45°. The novel SYLS structure and corresponding results can provide a reference for the research and design for labyrinth seal and the application of centrifugal pump.

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“…The same tendency is also presented in Ref. [22]. Moreover, the k and the C are the largest at C r = 0.1 mm.…”

Section: Dynamic Characteristicssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Study on Leakage Performance and Rotordynamic Characteristics of a Novel Semi-Y Type Labyrinth Seal

Shi

Zhou

2022

Lubricants

View full text Add to dashboard Cite

show abstract

Swirl brakes optimization for rotordynamic performance improvement of labyrinth seals using computational fluid dynamics method

Zhang

et al. 2021

Tribology International

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On the rotordynamic performance of an annular gas seal with self-adaptive jet slots: Comparisons to the swirl brake and shunt injection

Yang²,

Zhang³

et al. 2022

Tribology International

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Effects of Clearance on the Performance of a Labyrinth Seal Under Wet-Gas Conditions

Abstract: please see the attachment

Cited by 9 publications

References 9 publications

Study on Leakage Performance and Rotordynamic Characteristics of a Novel Semi-Y Type Labyrinth Seal

Study on Leakage Performance and Rotordynamic Characteristics of a Novel Semi-Y Type Labyrinth Seal

Swirl brakes optimization for rotordynamic performance improvement of labyrinth seals using computational fluid dynamics method

On the rotordynamic performance of an annular gas seal with self-adaptive jet slots: Comparisons to the swirl brake and shunt injection

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