Turbulent drag reduction characteristics induced by calf-thymus DNA

S. T. Lim; S. J. Park; C. K. Chan; H. J. Choi

doi:10.1016/j.physa.2004.11.034

Turbulent drag reduction characteristics induced by calf-thymus DNA

S. T. Lim, S. J. Park, C. K. Chan, H. J. Choi

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

17 引文斯高帕斯（Scopus）

摘要

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.

原文	???core.languages.en_GB???
頁（從 - 到）	84-88
頁數	5
期刊	Physica A: Statistical Mechanics and its Applications
卷	350
發行號	1
DOIs	https://doi.org/10.1016/j.physa.2004.11.034
出版狀態	已出版 - 1 5月 2005

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10.1016/j.physa.2004.11.034

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title = "Turbulent drag reduction characteristics induced by calf-thymus DNA",

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.",

keywords = "DNA, Mechanical degradation, Polymer, Turbulent drag reduction",

author = "Lim, {S. T.} and Park, {S. J.} and Chan, {C. K.} and Choi, {H. J.}",

note = "Funding Information: This study was supported by research grants from the Korea Science and Engineering Foundation through the Applied Rheology Center, an official KOSEF-created engineering research center at Korea University (Seoul), Korea.",

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AU - Lim, S. T.

AU - Park, S. J.

AU - Chan, C. K.

AU - Choi, H. J.

N1 - Funding Information: This study was supported by research grants from the Korea Science and Engineering Foundation through the Applied Rheology Center, an official KOSEF-created engineering research center at Korea University (Seoul), Korea.

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N2 - 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.

AB - 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.

KW - DNA

KW - Mechanical degradation

KW - Polymer

KW - Turbulent drag reduction

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Turbulent drag reduction characteristics induced by calf-thymus DNA

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