Wall modeled immersed boundary method for high Reynolds number flow over complex terrain

  title={Wall modeled immersed boundary method for high Reynolds number flow over complex terrain},
  author={Luoqin Liu and Richard J.A.M. Stevens},
  journal={Computers \& Fluids},

Geostrophic drag law for conventionally neutral atmospheric boundary layers revisited

The geostrophic drag law (GDL), which predicts the geostrophic drag coefficient and the cross‐isobaric angle, is relevant for meteorological applications such as wind energy. For conventionally

Evaluating the accuracy of the actuator line model against blade element momentum theory in uniform inflow

We evaluate the accuracy of the actuator line model (ALM) approach by performing simulations for the NREL 5-MW wind turbine in uniform inflow using three large eddy simulation codes. The power and

Enhanced wind-farm performance using windbreaks

The flow speed-up generated by windbreaks can be used to increase the power production of wind turbines. However, due to the increased drag imposed by the windbreaks, their use in large wind turbine

Impact of heterogeneous building arrangement on local turbulence escalation

  • Hyunmin YeoSang Lee
  • Engineering
    Building and Environment
  • 2023



Flow over Hills: A Large-Eddy Simulation of the Bolund Case

Simulation of local atmospheric flows around complex topography is important for several applications in wind energy (short-term wind forecasting and turbine siting and control), local weather

Modeling flow around bluff bodies and predicting urban dispersion using large eddy simulation.

This study describes a large eddy simulation (LES) tool including a new dynamic subgrid closure and boundary treatment to model urban dispersion problems, and sets the minimum grid resolution and subgrid model requirements needed to apply LES in simulations of neutral atmospheric boundary layer flow and scalar transport over a realistic urban geometry.

Intercomparison of terrain-following coordinate transformation and immersed boundary methods in large-eddy simulation of wind fields over complex terrain

An intercomparison of TFCT and IBM in large-eddy simulation of a turbulent wind field over a three-dimensional hill for the purpose of evaluating the implementation errors in IBM is performed.

Immersed boundary technique for turbulent flow simulations

The application of the Immersed Boundary ~IB! method to simulate incompressible, turbulent flows around complex configurations is illustrated; the IB is based on the use of non-body conformal grids,

Wall-layer models for large-eddy simulations

The numerical simulation of high Reynolds number flows is hampered by model accuracy if the Reynolds-averaged Navier–Stokes (RANS) equations are used, and by computational cost if direct or

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Large-Eddy Simulation of Atmospheric Boundary-Layer Flow Through a Wind Farm Sited on Topography

Large-eddy simulation (LES) has recently been well validated and applied in the context of wind turbines over flat terrain; however, to date its accuracy has not been tested systematically in the

Integral wall model for large eddy simulations of wall-bounded turbulent flows

A new approach for wall modeling in Large-Eddy-Simulations (LES) is proposed and tested in various applications. To properly include near-wall physics while preserving the basic economy of

Modeling turbulent flow over fractal trees using renormalized numerical simulation: Alternate formulations and numerical experiments

Simulating turbulent flows over objects characterized by hierarchies of length-scales poses special challenges associated with the cost of resolving small-scale elements. If these are treated as