1. Performance of a non-contact handling device using swirling flow with various gap height
- Author
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Shouichiro Iio, Toshiharu Kagawa, Masako Umebachi, Xin Li, and Toshihiko Ikeda
- Subjects
Materials science ,business.industry ,Simultaneous measurement ,Nozzle ,Mean pressure ,Perturbation (astronomy) ,Mechanics ,Condensed Matter Physics ,Non-contact handling ,PTV ,Flow field ,Swirling flow ,law.invention ,Vortex ,Physics::Fluid Dynamics ,Gap height ,Pressure measurement ,Optics ,law ,Levitation ,Electrical and Electronic Engineering ,business ,Wide gap - Abstract
Vortex levitation can achieve non-contact handling by blowing air into a vortex cup through a tangential nozzle to generate a swirling flow. In this paper, we focused on the relationship between the sucking pressure and the flow dynamics when gap distance from the cup to a work piece changes. Then simultaneous measurement of a pressure and a flow field in the cup was performed. As a result, the mean pressure changes and the pressure fluctuation inside the cup enhances with increasing gap height. Especially, periodic pressure perturbation is observed with wide gap height and it synchronizes with an eccentric rotation of the swirling flow. It is also found that the rotation axis of swirling flow steadily inclines against the central axis of the cup for appropriate gap height., Article, JOURNAL OF VISUALIZATION. 13(4):319-326 (2010)
- Published
- 2010
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