Simulation Research on Micro-Cavity Flow Field Characteristics of Liquid Floating Rotor Gyro

Yu Peng Shi; Fei Tang; Xiao Hao Wang

doi:10.4028/www.scientific.net/KEM.562-565.490

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 562-565Simulation Research on Micro-Cavity Flow Field...

Simulation Research on Micro-Cavity Flow Field Characteristics of Liquid Floating Rotor Gyro

Abstract:

The liquid floating rotor gyro is a gyroscope using electrostatic or electromagnetic forces to levitate rotor, and filling rotor-stator cavities with liquid in order to improve stability of motion. Under influence of the relative surface roughness, rotor velocity, dimension of flow field and fluid nature, flow characteristics of cavity flow field vary under different boundary conditions and geometrical conditions. This paper adopts three-dimensional model and periodic boundary conditions to conduct numerical modeling on cavity flow field. Its results show that, with velocity rising, distribution of flow field speed and pressure manifests partial fluctuations in turbulent-flow-intensive area; resistance torque amid rotor rotation is nonlinearly correlated with velocity, whose rules can be obtained through high-order curve fitting.

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Periodical:

Key Engineering Materials (Volumes 562-565)

Pages:

490-495

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.562-565.490

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Online since:

July 2013

Authors:

Yu Peng Shi, Fei Tang, Xiao Hao Wang

Keywords:

Liquid Floating Rotor Gyro, Numerical Modeling, Resistance of Flow Field

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