Search

Your search keyword '"Chevray, R."' showing total 26 results
Start Over Author "Chevray, R."
26 results on '"Chevray, R."'

15. The Turbulent Wake of a Body of Revolution

Author

Chevray, R.

Abstract

The wake behind a six-to-one spheroid was studied for a Reynolds number equal to 2.75 × 106 at 12 sections from 0.25 dia upstream to 18 dia downstream from the stern of the body. The flow pattern was determined and an analytical expression was derived to express the manner in which the mean characteristics of the wake develop in the established flow region. The Reynolds stresses were measured throughout the flow and their magnitudes were checked through the momentum and mean-energy equations.

Published
1968
Full Text
View/download PDF

25. Effect of chaotic mixing on enhanced biological growth and implications for wastewater treatment: a test case with Saccharomyces cerevisiae.

Author

Bagtzoglou AC, Assaf-Anid N, and Chevray R

Subjects
Cell Proliferation, Waste Disposal, Fluid instrumentation, Saccharomyces cerevisiae cytology, Saccharomyces cerevisiae metabolism, Waste Disposal, Fluid methods
Abstract

Mixing patterns and modes have a great influence on the efficiency of biological treatment systems. A series of laboratory experiments was conducted with a controlled, small-scale analog of a pilot wastewater aeration tank, consisting of two eccentrically placed cylinders. By controlling the rotation direction and speed of the two cylinders, it has been possible to develop chaotic flow fields in the space between the walls of the cylinders. Our experiments utilized Saccharomyces cerevisiae as the biological oxidation organism and air bubbles as the mixing agent supplied by a large fine pore diffuser to the cells in their exponential growth phase. The effect of various mixing patterns on cell growth was studied at different cylinder eccentricities, rotation directions and speeds. It was found that chaotic advection flow patterns: (a) enhanced growth, and (b) sped up the onset of maximal growth of the organism by 15-18% and 14-20%, respectively.

Published
2006
Full Text
View/download PDF

26. Visualization of fluid mixing in microchannels.

Author

Kang K and Chevray R

Subjects
Complex Mixtures analysis, Complex Mixtures chemistry, Computer Simulation, Equipment Design methods, Information Storage and Retrieval methods, Visual Perception, Computer-Aided Design, Data Display, Equipment Failure Analysis methods, Microfluidics instrumentation, Microfluidics methods, Models, Theoretical, User-Computer Interface
Published
2005
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results