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Scaling Law of the Near Wall Flow Subjected to an Adverse Pressure Gradient

  • Shinsuke Mochizuki
  • Keisuke Ohta
  • Takatsugu Kameda
  • Hideo Osaka
Part of the IUTAM Bookseries book series (IUTAMBOOK, volume 4)

Abstract

Detailed experiments have been conducted to investigate the effect of adverse pressure gradients on the log-law in turbulent boundary layers. The wall shear stress was measured by a direct measurement device and the scaling law of the mean velocity was discussed based on high-accuracy experimental data. Considering the significant contribution of the inertia term in the equations of motion, a new velocity scale is defined and a similarity law was obtained for the mean velocity profile subjected to an adverse pressure gradient.

Keywords

turbulent boundary layer law of the wall log-law adverse pressure gradient skin friction measurement 

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Copyright information

© Springer 2008

Authors and Affiliations

  • Shinsuke Mochizuki
    • 1
  • Keisuke Ohta
    • 2
  • Takatsugu Kameda
    • 3
  • Hideo Osaka
    • 3
  1. 1.Department of Mechanical Engineering, Graduate School of EngineeringYamaguchi UniversityUbeJapan
  2. 2.Kyocera Co. Ltd.KyotoJapan
  3. 3.Yamaguchi UniversityJapan

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