• Corpus ID: 195766802

Translation and rotation of a spherical particle in a turbulent boundary layer

@article{Tee2019TranslationAR,
  title={Translation and rotation of a spherical particle in a turbulent boundary layer},
  author={Yi Hui Tee and Diogo C. Barros and Ellen K. Longmire University of Minnesota and Usa},
  journal={arXiv: Fluid Dynamics},
  year={2019}
}
Three-dimensional particle tracking experiments were conducted in a turbulent boundary layer with friction Reynolds number $Re_\tau$ of 700 and 1300. Two finite size spheres with specific gravities of 1.003 (P1) and 1.050 (P2) and diameters of 60 and 120 wall units were released individually from rest on a smooth wall. The spheres were marked with dots all over the surface to monitor their translation and rotation via high-speed stereoscopic imaging. The spheres accelerated strongly after… 

Figures from this paper

Motion of finite-size spheres released in a turbulent boundary layer

References

SHOWING 1-10 OF 23 REFERENCES
Simultaneous 3D measurement of the translation and rotation of finite-size particles and the flow field in a fully developed turbulent water flow
We report a novel experimental technique that measures simultaneously in three dimensions the trajectories, the translation and the rotation of finite-size inertial particles together with the…
Interactions of a stationary finite-sized particle with wall turbulence
Reliable information on forces on a finite-sized particle in a turbulent boundary layer is lacking, so workers continue to use standard drag and lift correlations developed for a laminar flow to…
Forces on stationary particles in near‐bed turbulent flows
[1]Β In natural flows, bed sediment particles are entrained and moved by the fluctuating forces, such as lift and drag, exerted by the overlying flow on the particles. To develop a better…
Translational and rotational dynamics of a large buoyant sphere in turbulence
We report experimental measurements of the translational and rotational dynamics of a large buoyant sphere in isotropic turbulence. We introduce an efficient method to simultaneously determine the…
The lift on a small sphere in a slow shear flow
It is shown that a sphere moving through a very viscous liquid with velocity V relative to a uniform simple shear, the translation velocity being parallel to the streamlines and measured relative to…
Measurement of the lift force on a particle fixed to the wall in the viscous sublayer of a fully developed turbulent boundary layer
We have investigated the lift force on a small isolated particle which is attached to a flat smooth surface and embedded within the viscous sublayer of the turbulent boundary layer over this surface.…
Particle motions near the bottom in turbulent flow in an open channel. Part 2
This study continues the investigation of particle motions near the bottom in a turbulent open channel flow, reported by Sumer & Oguz (1978; hereafter referred to as part 1). Paths of suspended heavy…
Measurements of the mean force on a particle near a boundary in turbulent flow
  • D. Hall
  • Physics
    Journal of Fluid Mechanics
  • 1988
The transport of particles through gaseous systems is controlled by three factors: their arrival to the surface; whether or not they bounce upon impact; and when (if ever) they are resuspended from…
Experiments on particleβ€”turbulence interactions in the near–wall region of an open channel flow: implications for sediment transport
A high-speed video system was used to study the interaction between sediment particles and turbulence in the wall region of an open channel flow with both smooth and transitionally rough beds. In…
Tracking the dynamics of translation and absolute orientation of a sphere in a turbulent flow.
TLDR
Analysis of the six-dimensional dynamics--position and orientation--of a large sphere advected by a turbulent flow reveal a surprising intermittency for an object whose size lies in the inertial range, close to the integral scale of the underlying turbulent flow.
...
...