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Dental Air Turbine Performance Study Using CFD and Experimental Approach

[+] Author Affiliations
Hsiao-Wei D. Chiang, Chih-Neng Hsu, Ya-Yi Chang, Shun-Yao Chuang

National Tsing Hua University, Hsinchu, Taiwan

Paper No. GT2010-23039, pp. 1325-1332; 8 pages
doi:10.1115/GT2010-23039
From:
  • ASME Turbo Expo 2010: Power for Land, Sea, and Air
  • Volume 6: Structures and Dynamics, Parts A and B
  • Glasgow, UK, June 14–18, 2010
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4401-4 | eISBN: 978-0-7918-3872-3
  • Copyright © 2010 by ASME

abstract

Dental air turbine handpieces have been widely used in clinical dentistry for over 30 years, however, little work has been reported on their performance. In dental air turbine handpieces, the types of flow channel and turbine blade shape can have very different designs. These different designs can have major influence on the torque, rotating speed, and power performance. This research is focused on the turbine blade and the flow channel designs. Using CFD and experiments, the key design parameters which influence the performance of dental hand pieces can be studied. Three types of dental air turbine designs with different turbine blades, nozzle angles, nozzle flow channels, and shroud clearances were tested and analyzed. Very good agreement was demonstrated between the CFD analyses and the experiments. Using the analytical model, parametric studies were performed to indentify key design parameters.

Copyright © 2010 by ASME

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