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Ivanov, A. V., & Moskvicev, A. V. (2015) Influence of Geometry on Vortex Configuration and Dimension in Lre Turbopump Labyrinth Seal. Procedia Engineering, 106, 126-131. https://doi.org/10.1016/j.proeng.2015.06.015

has been cited by the following article:

  • TITLE: Labyrinth Seal Design Optimization Based on Quadratic Regression Orthogonal Experiment

    AUTHORS: Lihua Cao, Heyong Si, Pan Li, Yong Li

    KEYWORDS: Labyrinth Seal, Structure Parameters, Regression Orthogonal Test, Leakage Amount, Optimization

    JOURNAL NAME: Energy and Power Engineering, Vol.9 No.4B, April 6, 2017

    ABSTRACT: The influence of labyrinth seal structure parameters and their interaction on the characteristics of leakage amount are numerically investigated by conducting a quadratic regression orthogonal experiment. To determine the optimal structure parameters of the steam seal for minimizing the leakage amount, a reliable regression equation that does not lack of fit is established. The flow characteristics of the fluid in the labyrinth seal are analyzed in detail. Results show that the leakage amount is greatly influenced by seal cavity depth, convex platform height, seal tooth thickness, and tooth tip clearance, with the tip clearance having the most significant effect. The interaction among the four items exerts a certain impact on the leakage amount. The proposed regression equation exhibits a good significance and does not lack of fit. After optimization, the labyrinth seal demonstrates increased entropy and energy dissipation at the tip of the seal tooth, as well as decreased speed and inertia effect in the cavity, suggesting that the resistance leakage performance of the optimized labyrinth seal is improved.