Two-dimensional single phase computational fluid dynamics (CFD) model of microbubble-laden flow over a flat plate was used to assess the role of mixture density variation in microbubble drag reduction for high Reynolds number flows. The model consisted of Reynolds-averaged Navier-Stokes (RANS) transport equations, a standard k-ε turbulence model, and a convection-diffusion species transport model. Performance of the model was validated with available experimental data and numerical simulations of more advanced multiphase two-fluid model. A parametric study of density ratio and free stream turbulence intensity effects on drag reduction was carried out. The study indicated that the model taking into account only mixture density effect could still predict drag reduction reasonably well. In addition to this, higher values of free stream turbulence intensity are predicted to result in lower drag reduction.
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ASME 2005 Fluids Engineering Division Summer Meeting
June 19–23, 2005
Houston, Texas, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4198-7
PROCEEDINGS PAPER
Density Ratio and Turbulence Intensity Effects in Microbubble Drag Reduction Phenomenon Available to Purchase
P. V. Skudarnov,
P. V. Skudarnov
Florida International University, Miami, FL
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C. X. Lin
C. X. Lin
Florida International University, Miami, FL
Search for other works by this author on:
P. V. Skudarnov
Florida International University, Miami, FL
C. X. Lin
Florida International University, Miami, FL
Paper No:
FEDSM2005-77075, pp. 17-22; 6 pages
Published Online:
October 13, 2008
Citation
Skudarnov, PV, & Lin, CX. "Density Ratio and Turbulence Intensity Effects in Microbubble Drag Reduction Phenomenon." Proceedings of the ASME 2005 Fluids Engineering Division Summer Meeting. Volume 1: Symposia, Parts A and B. Houston, Texas, USA. June 19–23, 2005. pp. 17-22. ASME. https://doi.org/10.1115/FEDSM2005-77075
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