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Philosophical Transactions of the Royal Society of London. for the Year Mdcccxxvii. Part I. Volume Cxvii:355–388, 1827

The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science. S. 211-215

We present the scope, concepts, data structures and application programming models of the open-source Lattice Boltzmann library Palabos. Palabos is a C++ software platform developed since 2010 for Computational Fluid Dynamics simulations and Lattice Boltzmann modeling, which specifically targets applications with complex, coupled physics. The software proposes a very broad modeling framework, capable of addressing a large number of applications of interest in the Lattice Boltzmann community, yet exhibits solid computational performance. The article describes the philosophy of this programming framework and lists the models already implemented. Finally, benchmark simulations are provided which serve as a proof of quality of the implemented core functionalities.

Palabos: Parallel Lattice Boltzmann Solver

Evaluation of air compressibility effects on the performance of fixed OWC wave energy converters using CFD modelling

This review focuses on the most suitable form of hydrodynamic modeling for the next generation wave energy converter (WEC) design tools. To design and optimize a WEC, it is estimated that several million hours of operation must be simulated, perhaps one million hours of WEC simulation per year of the R&D program. This level of coverage is possible with linear potential flow (LPF) models, but the fidelity of the physics included is not adequate. Conversely, while Reynolds averaged Navier–Stokes (RANS) type computational fluid dynamics (CFD) solvers provide a high fidelity representation of the physics, the increased computational burden of these models renders the required amount of simulations infeasible. To scope the fast, high fidelity options, the present literature review aims to focus on what CFD theories exist intermediate to LPF and RANS as well as other modeling options that are computationally fast while retaining higher fidelity than LPF.

https://www.mdpi.com/2077-1312/8/1/35/pdf

Efficient Nonlinear Hydrodynamic Models for Wave Energy Converter Design—A Scoping Study

https://archive-ouverte.unige.ch/unige:106934/ATTACHMENT01

Virtual wave flume and Oscillating Water Column modeled by lattice Boltzmann method and comparison with experimental data

Lattice Boltzmann simulation of dense rigid spherical particle suspensions using immersed boundary method

We propose a procedure to implement Dirichlet velocity boundary conditions for complex shapes that use data from a single node only, in the context of the lattice Boltzmann method. Two ideas are at the base of this approach. The first is to generalize the geometrical description of boundary conditions combining bounce-back rule with interpolations. The second is to enhance them by limiting the interpolation extension to the proximity of the boundary. Despite its local nature, the resulting method exhibits second-order convergence for the velocity field and shows similar or better accuracy than the well-established Bouzidi's scheme for curved walls [M. Bouzidi, M. Firdaouss, and P. Lallemand, Phys. Fluids 13, 3452 (2001)]. Among the infinite number of possibilities, we identify several meaningful variants of the method, discerned by their approximation of the second-order nonequilibrium terms and their interpolation coefficients. For each one, we provide two parametrized versions that produce viscosity independent accuracy at steady state. The method proves to be suitable to simulate moving rigid objects or surfaces moving following either the rigid body dynamics or a prescribed kinematic. Also, it applies uniformly and without modifications in the whole domain for any shape, including corners, narrow gaps, or any other singular geometry.

/pdf/enhanced-single-node-lattice-boltzmann-boundary-condition-14hv19a4e3.pdf

Yann Thorimbert

Papers

Palabos: Parallel Lattice Boltzmann Solver

Virtual wave flume and Oscillating Water Column modeled by lattice Boltzmann method and comparison with experimental data

Lattice Boltzmann simulation of dense rigid spherical particle suspensions using immersed boundary method

Enhanced single-node lattice Boltzmann boundary condition for fluid flows.

Coupling of lattice Boltzmann shallow water model with lattice Boltzmann free-surface model