Experiment on laminar flow in a rotating, curved duct of rectangular cross section
Experimental results are presented here for laminar flow in a rotating, curved duct of rectangular cross section. The duct geometry is that of the spiral duct aerosol centrifuge designed by Stoeber and Flachsbart (1969). Primary velocity was measured by laser Doppler anemometry. Secondary flow velocity was characterized by dye injection. The experiment was done in a dynamically similar Plexiglas mockup of the centrifuge. Water flow in the mock-up simulated air flow in the aerosol centrifuge. The Reynolds number based on hydraulic diameter was 500. The Rossby number was 0.16. The duct aspect ratio was 3.3. Results are compared for flow in a straight stationary duct, the curved duct with no rotation, the curved duct with rotation in the direction of flow and the curved duct with rotation in the direction opposite of flow. There is agreement between the observed flow and the boundary layer theory of Ludwieg (1951). 18 references, 6 figures, 1 table.
- Research Organization:
- Inhalation Toxicology Research Institute, Albuquerque, NM
- DOE Contract Number:
- AC04-76EV01013
- OSTI ID:
- 5719145
- Journal Information:
- J. Fluids Eng.; (United States), Journal Name: J. Fluids Eng.; (United States) Vol. 106; ISSN JFEGA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of buoyancy on laminar flow in curved elliptic ducts
Numerical simulation of laminar flow in a curved duct