Inflow turbulence generation methods
X Wu - Annual Review of Fluid Mechanics, 2017 - annualreviews.org
Research activities on inflow turbulence generation methods have been vigorous over the
past quarter century, accompanying advances in eddy-resolving computations of spatially …
past quarter century, accompanying advances in eddy-resolving computations of spatially …
Exponential roughness layer and analytical model for turbulent boundary layer flow over rectangular-prism roughness elements
We conduct a series of large-eddy simulations (LES) to examine the mean flow behaviour
within the roughness layer of turbulent boundary layer flow over rough surfaces. We …
within the roughness layer of turbulent boundary layer flow over rough surfaces. We …
[HTML][HTML] Large eddy simulation of the neutral atmospheric boundary layer: performance evaluation of three inflow methods for terrains with different roughness
R Vasaturo, I Kalkman, B Blocken… - Journal of Wind …, 2018 - Elsevier
In large eddy simulations (LES) of the atmospheric boundary layer (ABL), the choice of
inflow method and the specification of surface roughness are crucial for obtaining accurate …
inflow method and the specification of surface roughness are crucial for obtaining accurate …
A two-dimensional Jensen model with a Gaussian-shaped velocity deficit
M Ge, Y Wu, Y Liu, XIA Yang - Renewable Energy, 2019 - Elsevier
Abstract The one-dimensional (1D) Jensen model is probably the most often used model for
engineering analysis of wind turbine wakes. Identifying a more realistic shape function for …
engineering analysis of wind turbine wakes. Identifying a more realistic shape function for …
Mean flow and turbulence in unsteady canopy layers
Non-stationarity is the rule in the atmospheric boundary layer (ABL). Under such conditions,
the flow may experience departures from equilibrium with the underlying surface stress …
the flow may experience departures from equilibrium with the underlying surface stress …
A semi-locally scaled eddy viscosity formulation for LES wall models and flows at high speeds
We show that the mean wall-shear stresses in wall-modeled large-eddy simulations
(WMLES) of high-speed flows can be off by up to ≈ 100\%≈ 100% with respect to a DNS …
(WMLES) of high-speed flows can be off by up to ≈ 100\%≈ 100% with respect to a DNS …
From limited observations to the state of turbulence: Fundamental difficulties of flow reconstruction
Numerical simulations of turbulence provide nonintrusive access to all the resolved scales
and any quantity of interest, although they often invoke idealizations and assumptions that …
and any quantity of interest, although they often invoke idealizations and assumptions that …
Aerodynamic properties of rough surfaces with high aspect-ratio roughness elements: effect of aspect ratio and arrangements
We examine the effect of varying roughness-element aspect ratio on the mean velocity
distributions of turbulent flow over arrays of rectangular-prism-shaped elements. Large-eddy …
distributions of turbulent flow over arrays of rectangular-prism-shaped elements. Large-eddy …
A hierarchical random additive model for passive scalars in wall-bounded flows at high Reynolds numbers
The kinematics of a fully developed passive scalar is modelled using the hierarchical
random additive process (HRAP) formalism. Here,'a fully developed passive scalar'refers to …
random additive process (HRAP) formalism. Here,'a fully developed passive scalar'refers to …
Turbulent flow over large roughness elements: effect of frontal and plan solidity on turbulence statistics and structure
Wind-tunnel experiments were carried out on fully-rough boundary layers with large
roughness (δ/h ≈ 10 δ/h≈ 10, where h is the height of the roughness elements and δ δ is …
roughness (δ/h ≈ 10 δ/h≈ 10, where h is the height of the roughness elements and δ δ is …