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Document type
Institution
Collection spécifique
Lingua
- Inglese (1)
Autore
- Gromke, Christof (1)
- Lehning, Michael (1)
- Leonard, Katherine (1)
- Manes, Costantino (1)
- Walter, Benjamin (1)
Parola chiave
- $${\overline {{u}^{\prime}{w}^{\prime}}}$$ : Kinematic Reynolds stress (1)
- $${\psi}$$ : Percentage of time that threshold skin friction velocity is exceeded (1)
- $${\tau=\rho u_\ast^2 }$$ : Total shear stress averaged over whole canopy (1)
- $${\tau_{\rm s}^{\prime \prime}}$$ : Spatial peak of temporally-averaged surface shear-stress distribution (1)
- $${\xi}$$ : Normalized turbulence intensity (1)
- $${u_\ast=(\tau/\rho)^{1/2}}$$ : Friction velocity (1)
- $${u_{\tau}=(\tau_{\rm s}/\rho)^{1/2}}$$ : Skin friction velocity (1)
- A f : Roughness element frontal area (1)
- Aeolian processes (1)
- D : Average roughness element diameter (1)
- Drag partitioning (1)
- Particle erosion (1)
- Q : Mass transport rate (1)
- Re h= U δ h / ν : Roughness element Reynolds number (1)
- S : Ground area per roughness element (1)
- Surface shear-stress (1)
- Turbulent boundary-layer (1)
- U s : Wind speed at Irwin sensor-tube height (1)
- U δ : Free-stream velocity (1)
- Vegetation aerodynamics (1)
- c 1 and c 2 : Constants (1)
- d : Sand grain diameter (1)
- f =20kHz : Hot-film sampling frequency (1)
- f c : Cut-off frequency (1)
- h : Roughness element height (1)
- h s : Irwin sensor tube height (1)
- m : Parameter relating $${\tau_{\rm s}^{\prime \prime}}$$ to τ s ′ (1)
- u * t : Fluid threshold friction velocity (1)
- u : Mean streamwise wind velocity (1)
- u τ t : Fluid threshold skin friction velocity (1) Di più Meno