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Turbulent drag reduction characteristics induced by calf-thymus DNA

Author

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

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.

Suggested Citation

  • Lim, S.T. & Park, S.J. & Chan, C.K. & Choi, H.J., 2005. "Turbulent drag reduction characteristics induced by calf-thymus DNA," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 350(1), pages 84-88.
    • Handle: RePEc:eee:phsmap:v:350:y:2005:i:1:p:84-88
    DOI: 10.1016/j.physa.2004.11.034
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    References listed on IDEAS

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    1. Goldburg, Walter I & Goldschmidt, Yadin Y & Kellay, Hamid, 2002. "Fluctuation and dissipation in liquid crystal electroconvection," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 314(1), pages 391-395.
    2. John James Mora, 2000. "William Stanley Jevons: el uso de las probabilidades y el cálculo," Estudios Gerenciales, Universidad Icesi, July.
    3. Khalatur, P.G. & Zherenkova, L.V. & Khokhlov, A.R., 1997. "Aggregation of colloidal particles induced by polymer chains: The RISM integral equation theory," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 247(1), pages 205-234.
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