Research of the Impact on Distance between Thermal Wires and Nozzle for Fluidic Gyroscope

Abstract:

The impact that distance between thermal wires and nozzle on flow distribution of fluidic gyroscope with three different cavity structures was researched. Using the Finite element method we calculated the two-dimensional flow distribution of fluidic gyroscope with rectangular cavity and two streamlined cavity structures when the distance d between thermal wires and nozzle is different. The results show that: flow velocity at the outlet in two streamlined cavities is larger than that in rectangular cavity, which is 28.87% and 28.91% of flow velocity at the nozzle respectively; the velocity in the three cavities decrease with d, the velocity in streamlined cavity 1 is always larger than that in streamlined cavity 2. When d = 16mm and 17mm, there are a larger velocity and a smaller x-axial velocity of the fluidic beam center in streamlined cavity 1, and velocity difference of two thermal wires increase, so the resolution of fluidic gyroscope can have an improvement.

• Periodical: Applied Mechanics and Materials (Volumes 268-270)
• Pages: 1474-1477
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.268-270.1474
• Online since: December 2012
• Authors: Bao Li Zhang, Lin Hua Piao, Jin Tang, Chuan Zhi Mei
• Keywords: Cavity Structure, Distance, Finite Element Method (FEM), Velocity Distribution

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