Turbulent heat transfer enhancement by vibration appearing in the viscoelastic layer of a viscoelastic fluid flow

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Other Title
  • 粘弾性流体流れの粘弾性底層に現れる振動による乱流熱伝達の増大

Abstract

<p>This paper presents the investigation of momentum and heat transfers in the viscoelastic layer of a viscoelastic fluid flow. We measured time series of velocities and the temperature using a two-component laser Doppler velocimeter and a fine-wire TC probe in flows of a surfactant solution which is a viscoelastic fluid. From the examination of the turbulent statistics, the effective thermal diffusivity, the time series of velocity and temperature fluctuations, and the spectra analysis, it was concluded that the viscoelastic vibration in the viscoelastic layer transports a high temperature fluid on the heating wall to the outer region.</p>

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Details 詳細情報について

  • CRID
    1390845713017770880
  • NII Article ID
    130007510132
  • DOI
    10.11345/japannctam.64.0_os2-02-03
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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