Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10482349 | Physica A: Statistical Mechanics and its Applications | 2005 | 5 Pages |
Abstract
We report novel turbulent drag reduction (DR) behaviors of polydisperse calf-thymus DNA (CT-DNA) as a potential drag reducing candidate, by injecting appropriately prepared concentrated stock solution of the CT-DNA into a buffer solution in a rotating disk apparatus. By putting emphasis on the effect of DNA concentration, its DR characteristics were compared with that of λ-DNA possessing monodisperse molecular weight characteristics based on both DR efficiency and a mechanical degradation under turbulence. The DNA chains having much higher molecular size than that of λ-DNA are observed to be more susceptible to mechanical degradation in a turbulent flow. This result was verified via electrophoresis.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
S.T. Lim, S.J. Park, C.K. Chan, H.J. Choi,