Viscous and hyperviscous filtering for direct and large-eddy simulation
E Lamballais, RV Cruz, R Perrin - Journal of Computational Physics, 2021 - Elsevier
This work is dedicated to the solution filtering technique for performing direct and large-eddy
simulation. It is shown that this approach is equivalent to the use of spectral viscosity as a …
simulation. It is shown that this approach is equivalent to the use of spectral viscosity as a …
Physical/numerical duality of explicit/implicit subgrid-scale modelling
R Vicente Cruz, E Lamballais - Journal of Turbulence, 2023 - Taylor & Francis
The development of implicit approaches has prompted debate on the actual usefulness of
any explicit subgrid-scale modelling in large-eddy simulation. This question is addressed …
any explicit subgrid-scale modelling in large-eddy simulation. This question is addressed …
Bayesian Optimisation of a Two‐Turbine Configuration Around a 2D Hill Using Large Eddy Simulations
When planning a new wind farm, optimising the turbine layout to maximise power output is
crucial. Traditional approaches based on analytical wake models often fail in complex …
crucial. Traditional approaches based on analytical wake models often fail in complex …
Simulation of turbulent flow subjected to conjugate heat transfer via a dual immersed boundary method
GF Narváez, E Lamballais, EB Schettini - Computers & Fluids, 2021 - Elsevier
In the context of turbulent flows, this study presents a new methodology for the high-fidelity
simulation of conjugate heat transfer between solid and fluid. The numerical strategy is …
simulation of conjugate heat transfer between solid and fluid. The numerical strategy is …
High-fidelity simulation of turbulent mixed convection in pipe flow
RV Cruz, C Flageul, E Lamballais, V Duffal… - International Journal of …, 2024 - Elsevier
Abstract Direct Numerical Simulations are performed to provide a fine description of the
turbulent mixed convection flow in an upward heated pipe. The introduction of buoyancy …
turbulent mixed convection flow in an upward heated pipe. The introduction of buoyancy …
On the estimation of unsteady aerodynamic forces and wall spectral content with immersed boundary conditions
Immersed boundary conditions (IBC) have become a practical tool to simplify the meshing
process for the simulation of complex geometries in CFD. This approach has reached a …
process for the simulation of complex geometries in CFD. This approach has reached a …
High-Order Finite-Difference Schemes for (Hyper-) Viscous Filtering on Non-Uniform Meshes
R Perrin, E Lamballais - Flow, Turbulence and Combustion, 2024 - Springer
In this study, the viscous filtering technique is extended to one-sided and biased finite-
difference schemes for non-uniform meshes. The most attractive feature of this technique …
difference schemes for non-uniform meshes. The most attractive feature of this technique …
High-fidelity simulations of wake-to-wake interaction in an atmospheric boundary layer over a complex terrain
In this work, the wind farm simulator WInc3D is employed to perform large-eddy simulations
(LES) of the flow over a complex terrain. The methodology used is validated through …
(LES) of the flow over a complex terrain. The methodology used is validated through …
Implicit wall-layer modelling in turbulent pipe flow
R Vicente Cruz, E Lamballais, R Perrin - Direct and Large Eddy Simulation …, 2020 - Springer
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High-fidelity simulation of conjugate heat transfer between a turbulent flow and a duct geometry
RV Cruz - 2021 - theses.hal.science
This study concerns the development of a new numerical technique for the simulation of
Conjugate Heat Transfer (CHT) in turbulent pipe flow configuration. The method is …
Conjugate Heat Transfer (CHT) in turbulent pipe flow configuration. The method is …