Influence of Thermal Wires Position on Fluidic Gyroscope with Different Cavities

Abstract:

The influence of thermal wires position on resolution of fluidic gyroscope with three different cavities was researched. Using Finite element method we calculated two-dimensional flow distribution of fluidic gyroscope with rectangular cavity and two streamlined cavities when the thermal wires are in different positions. As the results shown: define d is the distance between thermal wires and the nozzle along the fluidic beam propagation direction, when d ≥ 13mm, velocity 4SSUM in streamlined cavity 1 is bigger than velocity 2SSUM in streamlined cavity 2. When d >16mm, velocity SX of two streamlined cavities decrease faster than RX of rectangular cavity, which reduce the vortex phenomena in cavity. With the distance away from the center axis of cavity increases, the velocity gradient increases, and increasing the distance between two thermal wires within a certain range can increase velocity difference of two when angular velocity ωi inputs, temperature difference increases, so it increases the resolution of fluidic gyroscopes. This paper has an instructional role on structure optimization and performance improvement of fluidic gyroscopes.

• Periodical: Applied Mechanics and Materials (Volumes 268-270)
• Pages: 1562-1565
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.268-270.1562
• Online since: December 2012
• Authors: Bao Li Zhang, Lin Hua Piao, Jin Tang, Chuan Zhi Mei
• Keywords: Flow Distribution, Streamlined Cavity, Thermal Wires Position

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