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Measurement Methods for Fluid Shear Stress.
C Forbes Dewey,Peter W Huber +1 more
- Vol. 82, pp 28582
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TLDR
A knowledge of surface shear stress is essential in determining the drag on submerged bodies, the energy losses in internal flows, local surface heat transfer rates in both internal and external flows, flow separation, cavitation, and unsteady flow behavior in rotating machinery as mentioned in this paper.Abstract:
: Fluid shear stress is one of the most important quantities characterizing the interaction between a flowing fluid and a solid body. A knowledge of surface shear stress is essential in determining the drag on submerged bodies, the energy losses in internal flows, local surface heat transfer rates in both internal and external flows, flow separation, cavitation, and unsteady flow behavior in rotating machinery. (Author)read more
Citations
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Measurements and scaling of wall shear stress fluctuations
K. J. Colella,William L. Keith +1 more
TL;DR: In this paper, an array of eight flush-mounted wall shear stress sensors was used to compute the space-time correlation function, which collapsed with outer boundary layer length and velocity scales, verifying the existence of large-scale coherent structures which convect and decay along the wall at an angle of inclination varying from 10 to 13°.
Journal ArticleDOI
Modified gauge for time‐resolved skin‐friction measurements
TL;DR: A new gauge for skin‐friction measurements in turbulent flows involving a wire close to the surface and a second, flush‐mounted film which serves as a constant temperature guard heater is described and evaluated.
shear stress fluctuations
TL;DR: In this article, an array of eight flush-mounted wall shear stress sensors was used to compute the space-time correlation function of velocity and wall stress in an external turbulent boundary layer developed over a towed surface-piercing flat plate.
References
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The Measurement of Turbulence with the Laser-Doppler Anemometer
Instrument for measuring the wall shearing stress of turbulent boundary layers
TL;DR: In this article, it was shown that at a smooth wall in a turbulent boundary layer the velocity profile next to the wall is dependent only on the shearing stress transmitted to it, even with pressure rise or with pressure drop.